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118 Intermediate Algebra Fall 2018 Intermediate Algebra - 40428 - FNMT 118 - 122 Time: 6:30 - 9:35 pm, Thursday Room 228

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Page 1: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

118 Intermediate Algebra

Fall 2018

Intermediate Algebra - 40428 - FNMT 118 - 122

Time: 6:30 - 9:35 pm, Thursday

Room 228

Page 2: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

SYLLABUS

Catalog description. Real numbers, polynomials, rational expressions, algebraic expressions, linear equations and inequalities in one variable, absolute value equations and inequalities, linear equations in two variables, graphs of lines, systems of linear equations in two variables, quadratic equations in one variable, problem solving. A Departmental Exam is required with no calculators allowed. Prerequisite: FNMT 017 , or FNMT 118 (or higher) placement. Learning Outcomes.

Upon successful completion of this course, students will be able to:

1. Add, subtract, multiply, divide and factor polynomials 2. Add, subtract, multiply, divide and reduce rational expressions 3. Solve linear equations and inequalities in one variable 4. Solve absolute value equations in one variable 5. Graph linear equations and determine equations of lines 6. Solve 2 x 2 linear systems 7. Solve quadratic equations in one variable

Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition for the Community College of Philadelphia. Web Resource: www.coursecompass.com . You will get the ID for this web resource when you buy the book. The complete procedure how to access the Web Resource is described in your book in the message to the Students. Instructor: Dr. Arkady Kitover. Email: (the best way to contact me) [email protected] or

[email protected] Web Page: http://faculty.ccp.edu/FACULTY/akitover The web page contains the syllabus for this course and practice tests. Office: 327 Office hours: TR 5 pm - 6:25 pm, W 5 pm – 6 pm

Page 3: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Course Outline:

Week # Sections Topics and Homework 1

1.1-1.4 Real Numbers (1.1-1.4) . Recommended Homework: Chapter 1 Test, p. 47

2

2.1-2.3 Equations. Recommended Homework: Chapter 2 Test, p. 116 Problems 1-6, 11-13, and 23 -28

3

2.4-2.6

Linear Inequalities; Equations and Inequalities with absolute value. Recommended Homework: Chapter 2 Test, p. 116 Problems 7-10 and 14 – 22. Review 1

4

3.1-3.3 Exam #1 (on Chapters 1 and 2). Begin: Graphs and Functions Recommended Homework: Chapter 3 Test, p. 202 Problems 1-5 and 22-23.

5

3.4 - 3.5 Equations of Straight Lines; Functions and Relations. Recommended Homework: Chapter 3 Test, p. 202 Problems 6,7, and 10 -18.

6

4.1 and 4.3 Systems of Linear Equations. Recommended Homework: Chapter 4 Test, p. 256 (except Problems 10 and 15) Review 2

7

5.1-5.2 Exponents and scientific notation. Recommended Homework: Chapter 5 Test, p. 338 Problems 1-8. Exam #2 (on Chapters 3 and 4)

8

5.3-5.7 Polynomials. Adding, subtracting, and multiplying polynomials. Dividing and Factoring Polynomials. Recommended Homework: Chapter 5 Test, p. 338 Problems 9 – 24.

9

5.8, 6.1, and 6.2 Polynomials: factoring and solving equations Begin: Rational Expressions. Recommended Homework: Chapter 5 Test, p. 338 Problems 25 – 29. Chapter 6 Test, p. 375 Problems 1-14.

10

6.3-6.6 Rational expressions. Review 3 Recommended Homework: Chapter 6 Test, p. 413 Problems 14-26.

11

7.1, 7.2 Begin: Radical Expressions Exam #3 (on Chapters 5 and 6) Recommended Homework: Chapter 7 Test, p. 478 Problems 1-8.

Page 4: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

12

7.3-7.6

Radical Exponents, Radicals and Radical Equations Recommended Homework: Chapter 7 Test, p. 478 Problems 11-24, 31, and 32.

13

8.2 Solving Quadratic Equations by Using the Quadratic Formula. Recommended Homework: Chapter 8 Test, p. 541 Problems 1-7.

14

Review Only Review for the Final Exam

15

Exam Only Final Exam

Page 5: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Tests and Grading: Three tests in class – 100 points each. Cumulative final – 100 points. The final will be administered in a computer room. The details about the final will be posted by the department later in the semester. You will be able to access a practice test for the final approximately 9 weeks after the semester starts. A: 90 -100 % (360 – 400) B: 80 – 89 % (320 – 359) C: 70 – 79% (280 – 319) D: 60 – 69% (240 – 279) F: 0 – 59%(0 – 239) All students must take the FNMT Departmental examination. The FNMT Departmental examination shall count for at least 25% of each student’s final grade.

A student who does not take the Departmental Final Exam may only be assigned a grade of F or I (Incomplete). A student cannot receive any other grade (A, B, C or D) without taking the Departmental Final Exam. If a student, for a legitimate reason, does not take the final exam, his/her make-up exam should be scheduled with the FNMT Department Head, Dr. Gail Dixon.

Calculators are not allowed on the final exam. The final exam shall combine multiple choice problems and open answer

problems. Class Rules: The students must attend all classes. Students missing an equivalent of two weeks without a valid reason will be dropped from the class. No food in the classroom. You may not use electronic devices in the classroom for the purposes unrelated to the class material (texting, surfing the web, et cetera). I will subtract 10 points from your total sum of points for every violation of this rule. Put your cell phones in the vibration mode before the class starts. No use of cell phones is allowed during the tests.

Page 6: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

118 Intermediate algebra

Review 1

Find the value of the algebraic expression at the given replacement value.

1) The algebraic expression 3.9x gives the total weight in pounds of x tents of a certain type. Find the

total weight of 9 tents.

A) 12.9 lb B) 351 lb C) 3.51 lb D) 35.1 lb

1)

List all the elements of B that belong to the given set.

2) B =  6,  6, -16, 0, 4

5, - 

5

4, 4.2,  9

Integers

A) 6, 0,  9 B) 6, -16, 0 C) 6, 0 D) 6, -16, 0,  9

2)

Find the value.

3) -|18|

A) -18 B) -36 C) 18 D) 0

3)

Find the opposite of the number.

4) - 11

6

A)6

11B)

11

6C) - 

6

11D) - 

11

6

4)

Write the phrase as a variable expression. Use x to represent ʺa number.ʺ

5) 9 more than 7 times a number

A) 7(9 + x) B) 7x + 9 C) 9x + 7 D) 16x

5)

Add or subtract as indicated.

6)1

9 -  - 

1

3

A)4

9B) - 

4

9C)

2

9D) - 

2

9

6)

Multiply or divide as indicated.

7) - 4

5 ÷  - 

7

10

A) - 14

25B)

7

8C) - 

8

7D)

8

7

7)

1

Page 7: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Evaluate.

8) - 1

2

4

A)1

4B)

1

16C) - 

1

4D) - 

1

16

8)

Find the indicated root.

9)  - 1

16

A) - 1

7B) - 

1

4

C) - 1

32D) not a real number

9)

Simplify the expression.

10)|5(-4)| - |1 - 11|

-16

A)5

8B)

15

8C) - 

5

8D) - 

15

8

10)

Find the value of the algebraic expression at the given replacement value.

11)y - 7x

2x + xywhen x = -2, y = 3

A)11

10B) - 

9

5C) - 

17

10D) - 

11

2

11)

Solve the problem.

12) If c is degrees Celsius, the algebraic expression 1.8c + 32 represents the equivalent temperature in

degrees Fahrenheit.  Find the Fahrenheit temperature when c = 95.

A) 203° F B) 139° F C) 71° F D) 35.4° F

12)

Write the sentence using mathematical symbols.

13) The difference of twice x and 3 is less than or equal to 11.

A) 2x - 3 ≥ 11 B) 3 - 2x ≤ 11 C) 2x - 3 ≤ 11 D) x - 2 · 3 ≥ 11

13)

Find the opposite (or additive inverse) of the number.

14) -22

A) -22 B) - 1

22C) 0 D) 22

14)

Write the reciprocal (or multiplicative inverse) of the number if it exists.

15)7

4

A)4

7B) - 

4

7C) 1 D) - 

7

4

15)

2

Page 8: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Use a commutative property to write an equivalent expression.

16)23

14 · x

5

A)23

14 · x

5B)

x

5 · 23

14C)

x

23 · 

5

14D)

5

14 · 

x

23

16)

Use an associative property to write an equivalent expression.

17) (2 · 14) · 22

A) 2 · (14 · 22) B) 22 · (2 · 14) C) (2 · 14) · 22 D) (14 · 2) · 22

17)

Use the distributive property to find the product.

18) -(s - 2y)

A) s - 2y B) -s - 2y C) s + 2y D) -s + 2y

18)

Write the following as an algebraic expression.

19) If 6x is an even integer, represent the next even integer as an expression in x.

A) 12x B) 6x + 2 C) 6x + 1 D) 8x

19)

Simplify the expression.

20) -14 - (6y - 4)

A) -6y - 10 B) -6y - 18 C) -6y + 10 D) -6y + 18

20)

21) 4(6x2 - 2) - 3(x2 - 3)

A) 21x2 - 5 B) 21x2 - 17 C) 12x2 + 1 D) 21x2 + 1

21)

22) 5.5x - 1.9 - 3.6x + 7 + 2.7x

A) 4.6x + 8.9 B) 4.6x - 5.1 C) 4.6x + 5.1 D) 11.8x + 5.1

22)

23)1

3(15x - 3) - 

1

8(72x - 9y)

A) -4x + 1

8y B) -4x + 

9

8y - 1 C) 4x + 

1

8y D) 4x + 

9

8y - 1

23)

24) The   of a number a is -a.

A) reciprocal B) opposite C) inequality D) absolute value

24)

25) The numbers 0, 1, 2, 3, ... are called   numbers

A) exponent B) whole C) variable D) real

25)

Solve the equation.

26) -51 = -9x - 6

A) -36 B) -32 C) 5 D) 11

26)

27) x(7x - 5) + 4 = 7x(x - 4) + x

A) - 4

23B) 6 C) - 2 D) - 

2

11

27)

3

Page 9: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

28) - 1

8(x - 16)  - 

1

8(x - 8)  = x + 5

A) - 16

5B) - 

8

5C) - 

32

5D) - 

24

5

28)

Solve.

29) The sum of three consecutive even integers is 318. Find the integers.

A) 104, 106, 108 B) 106, 108, 110 C) 102, 104, 106 D) 105, 106, 107

29)

Solve the formula for the specified variable.

30) S = 2πrh + 2πr2  for h

A) h = S

2πr - 1 B) h = S - r C) h = 2π(S - r) D) h = 

S - 2πr2

2πr

30)

Solve the inequality.  Write the solution set in interval notation and graph the solution set.

31) 3z - 1 ≥ 2z + 4

A) (5, ∞)

-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12

B) (-∞, 5]

-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12

C) [5, ∞)

-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12

D) (3, ∞)

-4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10-4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10

31)

Write the solution set using interval notation.

32) 15(14x + 1) > 15

A)1

210, ∞ B)

1

210, ∞ C) (0, ∞) D) [0, ∞)

32)

List the elements of the set.

33) If A = {7, 8, 9, 12} and B = {5, 7, 8, 10}, list the elements of A ∩ B.

A) { } B) {5, 9, 10, 12}

C) {7, 8} D) {5, 7, 8, 9, 10, 12}

33)

4

Page 10: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Solve the compound inequality. Graph the solution set.

34) 7x < 35 and x + 7 > 4

A) [-3, 5]

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

B) (-∞, -3) ∪ (5, ∞)

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

C) (-3, 5)

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

D) ∅

-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6

34)

List the elements of the set.

35) If A = {x|x is an even integer} and B = {-11, -9, -7, -5}, list the elements of A ∪ B.

A) {x|x is an even integer}

B) { }

C) {x|x is an even integer or x = -11 or x = -9 or x = -7 or x = -5}

D) {-11, -9, -7, -5}

35)

Solve the compound inequality. Graph the solution set.

36) 9x - 6 < 3x or -2x ≤ -6

A) (-∞, 1) ∪ [3, ∞)

1 2 3 4 5 6 7 81 2 3 4 5 6 7 8

B) [1, 3]

1 2 3 4 5 6 7 81 2 3 4 5 6 7 8

C) (1, 3)

1 2 3 4 5 6 7 81 2 3 4 5 6 7 8D) ∅

-3 -2 -1 0 1 2 3-3 -2 -1 0 1 2 3

36)

Solve the absolute value equation.

37)5x + 10

2 = 5

A) 4, 0 B) -4, 4 C) -4, 0 D) ∅

37)

5

Page 11: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

38) |7x - 5| = |-6 - 8x|

A) - 1

15, 11 B) - 

1

15, - 11 C) - 

1

15D) ∅

38)

Solve the inequality. Graph the solution set.

39) |2k + 7| + 9 < 13

A) -∞, - 11

2 ∪  - 

3

2, ∞

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

B) - 11

2, - 

3

2

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

C) -∞, - 11

2

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

D) -∞, - 3

2

-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

39)

6

Page 12: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

40) |5k + 9| - 1 > 4

A) - 14

5, - 

4

5

-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11

B) -∞, - 14

5 ∪  - 

4

5, ∞

-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11

C) - 4

5, ∞

-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11

D) -∞, - 14

5 ∪  - 

4

5, ∞

-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11-3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 11

40)

7

Page 13: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Answer KeyTestname: REVIEW 1

1) D

2) D

3) A

4) B

5) B

6) A

7) D

8) B

9) B

10) C

11) C

12) A

13) C

14) D

15) A

16) B

17) A

18) D

19) B

20) A

21) D

22) C

23) B

24) B

25) B

26) C

27) D

28) B

29) A

30) D

31) C

32) C

33) C

34) C

35) C

36) A

37) C

38) B

39) B

40) B

8

Page 14: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Review 2

Determine the coordinates of the indicated point on the graph.

x-5 5

y

5

-5

C

F

A BD

E

G

HI

JK

L

M

x-5 5

y

5

-5

C

F

A BD

E

G

HI

JK

L

M

1) G

A) (-3, 0) B) (0, 3) C) (0, -3) D) (3, 0)

1)

Name the quadrant or axis in which the point lies.

2) (9, -3)

A) quadrant I B) quadrant II C) quadrant III D) quadrant IV

2)

Plot the point.

3) (-5, 4)

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

A)

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

B)

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

3)

1

Page 15: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

C)

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

D)

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

x-6 -4 -2 2 4 6

y

6

4

2

-2

-4

-6

Determine whether the ordered pair is a solution of the given equation.

4) y = -4x - 6; (-2, 14)

A) No B) Yes

4)

Graph the equation.

5) -9x - y = -4

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

B)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

5)

2

Page 16: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

C)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

D)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

Find the domain and range.

6) {(-8, -2), (-4, 1), (11, -5), (-6, -1), (12, 4)}

A) domain = {12, 4, -5, -2, -4}; range = {-6, 1, -1, 11, -8}

B) domain = {1, -8, -5, 11, -2}; range = {-6, -1, 12, 4, -4}

C) domain = {4, -2, 1, -1, -5}; range = {12, -8, -4, -6, 11}

D) domain = {-8, -4, 11, -6, 12}; range = {1, -5, -1, 4, -2}

6)

Find the domain and the range of the relation. Then determine whether the relation is a function.

7)

Input: Output:

patient allergy

  

Alice

Brad

Carl

        

fur

dust

milk

A) domain: {Alice, Brad, Carl}

range: {fur, dust, milk}

function

B) domain: {Alice, Brad, Carl}

range: {fur, dust, milk}

not a function

C) domain: {fur, dust, milk}

range: {Alice, Brad, Carl}

function

D) domain: {fur, dust, milk}

range: {Alice, Brad, Carl}

not a function

7)

3

Page 17: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Use the vertical line test to determine whether the graph is the graph of a function.

8)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A) function B) not a function

8)

Find the domain and the range of the relation. Use the vertical line test to determine whether the graph is the graph of a

function.

9)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A) domain: [-4, 4]

range: [-9, 9]

not a function

B) domain: [-9, 9]

range: [-4, 4]

not a function

C) domain: [-4, 4]

range: [-9, 9]

function

D) domain: [-9, 9]

range: [-4, 4]

function

9)

Find the indicated value.

10) Find f(-6) when f(x) = -4.8(x + 5.3)

A) 33.9 B) 3.36 C) 3.16 D) 34.1

10)

Solve.

11) The monthly cost of a certain long distance service is given by the linear function C(t) = 0.04t + 9.95

where C(t) is in dollars and t is the amount of time in minutes called in a month.  Find the cost of

calling long distance for 80 minutes in a month.

A) $12.15 B) $3.20 C) $17.95 D) $13.15

11)

4

Page 18: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Graph the function by finding x- and y-intercepts.

12) x + 3y = 15

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

B)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

C)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

D)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

12)

5

Page 19: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Graph the equation.

13) y + 2 = 0

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

B)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

C)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

D)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

13)

6

Page 20: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

14) x + 4 = 0

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

B)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

C)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

D)

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

14)

Find the slope of the line that goes through the given points.

15) (5, 0),  (0, 3)

A)3

5B) - 

5

3C) - 

3

5D)

5

3

15)

Find the slope of the line.

16) 3x + 2y = 13

A) - 3

2B)

2

3C)

13

2D)

3

2

16)

7

Page 21: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Solve the problem.

17) When a tow truck is called, the cost of the service is given by the linear function y = 3x + 80, where

y is in dollars and x is the number of miles the car is towed. Find and interpret the slope and

y-intercept of the linear equation.

A) m = 3;  The number of miles the car is towed increases 3 miles for every dollar spent on the

service.  b = 80;  The tow truck will tow the car 80 miles for no cost.

B) m = 3; The cost of the service increases $3 every mile the car is towed.  b = 80;  The cost of the

service is $80 if the car is not towed.

C) m = 80; The cost of the service increases $80 every mile the car is towed.  b = 3;  The cost of

the service is $3 if the car is not towed.

D) m = 80;  The number of miles the car is towed increases 80 miles for every dollar spent on the

service.  b = 3;  The tow truck will tow the car 3 miles for no cost.

17)

Find the slope of the line that goes through the given points.

18) (3, -3), (3, 8)

A)5

6B) 0 C) - 

11

6D) undefined

18)

Find the slope of the line.

19) y + 2 = 0

A) 0 B) -2 C) 2 D) undefined

19)

Determine whether the lines are parallel, perpendicular, or neither.

20) f(x) = -6x - 8

g(x) = 6x + 7

A) parallel B) perpendicular C) neither

20)

Solve the problem.

21) Find the slope of a line perpendicular to the line -5x - 6y = 3.

A) 3 B)6

5C) undefined D) - 

6

5

21)

Use the slope-intercept form of the linear equation to write the equation of the line with the given slope and y -intercept.

22) Slope 2

5;  y-intercept (0, 1)

A) y = - 5

2x + 1 B) y = 

2

5x + 1 C) y = - 

5

2x - 1 D) y = 

2

5x - 1

22)

Find an equation of the line. Write the equation in standard form.

23) Through (9, -28) and (1, 4)

A) x - 4y = 8 B) 4x + y = 8 C) x + 4y = 8 D) -4x + y = 8

23)

Find an equation of the line. Write the equation using function notation.

24) Through (3, -4);  perpendicular to x + 5y = -5

A) f(x) = 5x - 11 B) f(x) = 1

5x - 

23

5

C) f(x) = 5x - 19 D) f(x) = - 1

5x - 

23

5

24)

8

Page 22: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Find an equation of the line. Write the equation in standard form.

25) Through (3, 3);  parallel to 9x + 2y = 2

A) 9x + 2y = 33 B) 2x + 9y = 33 C) 2x - 9y = 33 D) 9x - 2y = 33

25)

Determine whether the ordered pair is a solution of the system of linear equations.

26) (4, -6),   x + y = -10

x - y = 2

A) Yes B) No

26)

Solve the system by graphing.

27)

x - y = -1

x + 2y = -13

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A) (-5, 4) B) (-4, 5) C) (-4, -5) D) (-5, -4)

27)

28)

4y + 4 = 0

x - 3y = -1

x-10 -5 5 10

y10

5

-5

-10

x-10 -5 5 10

y10

5

-5

-10

A) (-1, -4) B) (-4, -1) C) (-1, 4) D) (-4, 1)

28)

Solve the system of equations.

29)

x + y = -2

y = -3x

A) (-1, 3) B) (1, 3) C) (1, -3) D) (-1, -3)

29)

9

Page 23: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

30)

x - 2y = 3

-6x - 3y = -63

A) (-9, 4) B) (8, 4) C) (9, 3) D) ∅

30)

31)

x - 5y = -34

2x - 5y = -28

A) (8, 6) B) (6, 8) C) (-8, 6) D) ∅

31)

32)

1

x + y = 35

6

x + y = 65

A)1

6, -29 B) - 

1

6, -29 C) 29, 

1

6D)

1

6, 29

32)

Solve.

33) One number is 1 less than a second number. Twice the second number is 4 less than 3 times the

first. Find the two numbers.

A) 5 and 6 B) 6 and 7 C) -7 and -6 D) 7 and 8

33)

34) Two cars leave a city and head in the same direction. After 6 hours, the faster car is 18 miles ahead

of the slower car. The slower car has traveled 282 miles. Find the speeds of the two cars.

A) 30 mph and 33 mph B) 49 mph and 52 mph

C) 44 mph and 47 mph D) 47 mph and 50 mph

34)

35) The manager of a bulk foods establishment sells a trail mix for $7 per pound and premium

cashews for $15 per pound. The manager wishes to make a 480-pound trail mix-cashew mixture

that will sell for $8 per pound. How many pounds of each should be used?

A) 420 pounds of trail mix

60 pounds of cashews

B) 60 pounds of trail mix

420 pounds of cashews

C) 240 pounds of trail mix

240 pounds of cashews

D) 270 pounds of trail mix

210 pounds of cashews

35)

36) A vendor sells hot dogs and bags of potato chips. A customer buys 2 hot dogs and 5 bags of potato

chips for $8.00. Another customer buys 3 hot dogs and 3 bags of potato chips for $7.50.  Find the

cost of each item.

A) $1.50 for a hot dog; $1.00 for a bag of potato chips

B) $1.00 for a hot dog; $1.50 for a bag of potato chips

C) $1.50 for a hot dog; $1.25 for a bag of potato chips

D) $1.75 for a hot dog; $1.25 for a bag of potato chips

36)

Given the cost function, C(x), and the revenue function, R(x), find the number of units x that must be sold to break even.

37) C(x) = 2000x + 33,000

R(x) = 5000x

A) 11 units B) 13 units C) 12 units D) 5 units

37)

10

Page 24: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

The figure shows the graphs of the cost and revenue functions for a company that manufactures and sells binoculars.

Use the information in the figure to answer the question.

38) How many binoculars must be produced and sold for the company to break even?

A) 1500 binoculars B) 750 binoculars C) 2700 binoculars D) 2250 binoculars

38)

39) At the break-even point both cost and revenue are what?

A) $2700 B) $1500 C) $2250 D) $750

39)

Fill in the blank with one of the words or phrases listed below.

matrix consistent system of equations

solution inconsistent square

40) A(n)   system of equations has at least one solution.

A) consistent B) inconsistent C) matrix D) square

40)

11

Page 25: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Answer KeyTestname: REVIEW 2

1) A

2) D

3) C

4) A

5) B

6) D

7) B

8) B

9) B

10) B

11) D

12) C

13) B

14) B

15) C

16) A

17) B

18) D

19) A

20) C

21) B

22) B

23) B

24) C

25) A

26) B

27) D

28) B

29) C

30) C

31) B

32) D

33) B

34) D

35) A

36) A

37) A

38) B

39) C

40) A

12

Page 26: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Review 3

Simplify. Write the answer with positive exponents.

1) 45 · 47

A) 1635 B) 435 C) 1612 D) 412

1)

2) 8x4 · -4x8

A) -32x32 B) 32x32 C) -32x12 D) 32x12

2)

Simplify. Assume that variables in the exponent represent nonzero integers.

3) x2a · x9a · x8a + 2

A) ax144a+2 B) ax19a + 2 C) x144a + 2 D) x19a + 2

3)

Simplify. Write the answer with positive exponents.

4) (-8x)0 - 8x0

A) -9 B) -7 C) -8x + 1 D) -16

4)

5)x9y13

x5y7

A) x3y6 B) x4y6 C) xy6 D) x3y5

5)

6)-40x11y9z4

8x3y3z3

A) -5x8y6 B) x8y6z C) -5x7y5z D) -5x8y6z

6)

Simplify. Assume that variables in the exponent represent nonzero integers.

7)x5a + 7 · x3a

xa

A) x9a B) x7a + 7 C) x2a + 7 D) x15a

7)

Simplify. Write the answer with positive exponents.

8)1

2-3

A) -8 B)1

8C)

1

6D) 8

8)

9)x-7

x-9

A)1

x2B) x2 C) - 

1

x2D) -x2

9)

1

Page 27: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

10)x-5y7

x-2y-4

A)1

x3y3B)

x3

y3C)

y11

x3D) x3y11

10)

Write the number in scientific notation.

11) In a certain city, the bus system carried a total of 12,700,000,000 passengers.

A) 1.27 × 1010 B) 1.27 × 109 C) 12.7 × 1010 D) 1.27 × 1011

11)

Write the number in standard notation.

12) 5.482 × 10-6

A) 0.000005482 B) 0.00005482 C) -5,482,000 D) 0.0000005482

12)

Simplify. Write the answer with positive exponents.

13) (34)-2

A) -162 B)1

6561C)

1

729D) -24

13)

14)4x4y2

z4

3

A)4x12y6

z12B)

64x7y5

z7C)

4x12y6

z7D)

64x12y6

z12

14)

Perform the indicated operations.

15) (9x5 + 9x4 + 9x3 - 4) - (5x5 - 6x4 - 2x3 + 6)

A) 14x5 + 3x4 + 7x3 - 10 B) 4x5 + 15x4 + 11x3 - 10

C) 14x5 + 3x4 + 7x3 + 2 D) 4x5 + 3x4 + 7x3 + 2

15)

Multiply.

16) (4y + 11)(3y2 - 2y - 7)

A) 12y3 + 41y2 + 50y + 77 B) 12y3 - 8y2 - 28y + 11

C) 45y2 - 30y - 105 D) 12y3 + 25y2 - 50y - 77

16)

17) (8x - 9y)2

A) 8x2 + 81y2 B) 64x2 + 81y2

C) 64x2 - 144xy + 81y2 D) 8x2 - 144xy + 81y2

17)

Simplify. Write the answer with positive exponents.

18)xy4

x3y

-2

A)1

x8y10B)

y6

x4C)

x4

y6D)

1

x5y9

18)

2

Page 28: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

19)3-1x-4y-4

z-2

-4

A)z8

81x16y16B)

81x16y16

z8C)

z8

3x16y16D)

3x16y16

z6

19)

Perform the indicated operation. Write the answer in scientific notation.

20)270,000,000,000

0.000003

A) 24 × 1015 B) 24 × 1016 C) 9 × 1015 D) 9 × 1016

20)

Solve. Write the answer in scientific notation.

21) If the mass of an object is 2.45116 × 10-8 tons and its density is 4.66 × 10-7 tons per cubic foot, find

the volume of this object. (Use the formula D = M

V.)

A) 52.6 × 10-2 cubic feet B) 5.26 × 10-1 cubic feet

C) 5.26 × 10-3 cubic feet D) 5.26 × 10-2 cubic feet

21)

Find the degree of the polynomial and indicate whether the polynomial is a monomial, binomial, trinomial, or none of

these.

22) -8x2 + 8x2y + 7

A) degree 2; trinomial B) degree 5; trinomial

C) degree 3; trinomial D) degree 2; none of these

22)

Perform the indicated operations.

23) - 2

3x2 - 

2

5x + 

1

3 + 

1

3x2 - 

4

5x + 

1

2

A) - 1

3x4 - 

6

5x2 + 

5

6B) - 

1

3x2 - 

6

5x - 

5

6

C) - 23

15x6 + 

5

6D) - 

1

3x2 - 

6

5x + 

5

6

23)

Multiply.

24) (x2 + 12y)(x2 - 12y)

A) x4 - 24y2 B) x4 - 144y2

C) x4 - 24x2y - 144y2 D) x4 + 24x2y - 144y2

24)

25) (x - 3)(x + 1)(4x - 3)

A) 4x3 - 6x2 - 11x + 9 B) 4x3 + 9

C) 4x3 + 11x2 + 6x + 9 D) 4x3 - 11x2 - 6x + 9

25)

Factor the polynomial completely.

26) 24x9y9 - 32x7y5 + 64x3y2

A) 8x3y2(3x6y7 - 4x4y3 + 8) B) x3y2(24x6y7 - 32x4y3 + 64)

C) 8x3(3x6y9 - 4x4y5 + 8y2) D) 8(3x9y9 - 4x7y5 + 8x3y2)

26)

3

Page 29: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

27) xy - 4yz + 11x - 44z

A) (y - 4)(x + 11z) B) (y + 4)(x - 11z) C) (y + 11)(x - 4z) D) (y - 11)(x + 4z)

27)

28) x2 - x - 35

A) (x - 35)(x + 1) B) (x - 5)(x + 7)

C) (x + 5)(x - 7) D) prime polynomial

28)

29) 20x2 + 7x - 6

A) (20x + 3)(x - 2) B) (4x + 3)(5x - 2)

C) (4x - 3)(5x + 2) D) prime polynomial

29)

30) 49x3y - 84x2y2 + 36xy3

A) xy(7x - 6y)2 B) (49x2y + xy)(x + 36y2)

C) xy(7x - 6y)(7x + 6y) D) xy(7x + 6y)2

30)

31) 72x2y - 98y

A) 2y(6x + 7)2 B) 2y(6x + 7)(6x - 7)

C) 2y(6x - 7)2 D) prime polynomial

31)

32) 512y3 + 343

A) (512y - 7)(y2 + 56y + 49) B) (8y - 7)(64y2 + 56y + 49)

C) (8y + 7)(64y2 + 56y + 49) D) (8y + 7)(64y2 - 56y + 49)

32)

33) 375x3y - 81y4

A) 3y(125x - 3y)(x2 + 15xy + 9y2) B) 3y(5x + 3y2)(25x2 - 15xy + 9xy2)

C) 3y(5x - 3y)(25x2 + 15xy + 9y2) D) (15xy - 9y2)(25x2 + 9y2)

33)

Solve the equation.

34) x3 - x = -7x2 + 7

A) 1, - 7, 7 B) - 7, 7 C) 49 D) -1, 1, - 7

34)

Solve.

35) Find the length of the shorter leg of a right triangle if the longer leg is 24 meters and the

hypotenuse is 6 more than twice the shorter leg.

A) 9 m B) 17 m C) 18 m D) 10 m

35)

Find the domain of the rational function.

36) f(x) = 1 - 6x

x2 - 4x - 32

A) x|x is a real number and x ≠ 8, x ≠ -4, x ≠ 1

6

B) x|x is a real number and x ≠ 8, x ≠ -4, x ≠ 1

6, x ≠ 0

C) {x|x is a real number and x ≠ -8, x ≠ -4}

D) {x|x is a real number and x ≠ 8, x ≠ -4}

36)

4

Page 30: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Simplify the rational expression.

37)x2 + 11x + 30

x2 + 12x + 35

A) - x2 + 11x + 30

x2 + 12x + 35B)

11x + 30

12x + 35C)

11x + 6

12x + 7D)

x + 6

x + 7

37)

Multiply or divide as indicated. Simplify completely.

38)x2 + 8x + 15

x2 + 10x + 21 · 

x2 + 7x

x2 + 9x + 20

A)x2 + 7x

x + 4B)

1

x + 4C)

x

x + 4D)

x

x2 + 10x + 21

38)

39)x2 + 5x - 6

x2 + 9x + 18 ÷ 

x2 - 1

x2 + 7x + 12

A)x + 4

x - 1B)

x + 1

x + 4C)

x + 4

x + 1D)

x - 1

x + 4

39)

Perform the indicated operation. Simplify if possible.

40)8x2

x - 1 + 

-8x

x - 1

A) 8x B)8x

x - 1C) 0 D)

8x(x + 1)

x - 1

40)

Solve the equation.

41)x + 5

x2 + 3x + 2 - 

5

x2 + 4x + 4 = 

x - 5

x2 + 3x + 2

A) -15 B) -3 C) 3 D) 0

41)

Perform the indicated operation. Simplify if possible.

42)m - 5

m2 - 7m + 6 + 

2m + 1

m2 - 5m + 4

A)3m - 4

2m2 - 12m + 10B)

3m2 - 20m + 14

(m + 1)(m + 6)(m + 4)

C) 3m - 4 D)3m2 - 20m + 14

(m - 1)(m - 6)(m - 4)

42)

Divide.

43) (-8x3 + 14x2 - 15x + 3) ÷ (-4x + 1)

A) x2 - 3x + 3 B) 2x2 + 3 C) 2x2 - 3x + 3 D) x2 + 3x - 3

43)

5

Page 31: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Use synthetic division to divide.

44)3x3 + 10x2 + 13x - 14

x - 2

3

A) 3x2 + 8x + 23

3 + 

2

3

x - 2

3

B) 3x2 - 12x + 21

C) 3x2 + 12x + 21 - 28

x - 2

3

D) 3x2 + 12x + 21

44)

Solve.

45) One conveyor belt can move 1000 boxes in 10 minutes. Another can move 1000 boxes in 11

minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3

minutes. How long would it take the third conveyor belt alone to do the same job?

A) 71

47 minutes B)

47

330 minute C) 1

157

173 minutes D)

173

330 minute

45)

46) The pressure of a gas varies jointly as the amount of the gas (measured in moles)  and the

temperature and  inversely as the volume of the gas.  If the pressure is 1014 kPa (kiloPascals) when

the number of moles is 8, the temperature is 260° Kelvin, and the volume is 640 cc, find the

pressure when the number of moles is 9, the temperature is 320° K, and the volume is 1080 cc.

A) 1768 B) 780 C) 832 D) 1664

46)

6

Page 32: 118 Intermediate Algebra Fall 2018 Intermediate Algebra ...faculty.ccp.edu/FACULTY/akitover/118/Binder118.pdf · Book: Intermediate Algebra by K. Elayn Martin-Gay, Custom edition

Answer KeyTestname: REVIEW 3

1) D

2) C

3) D

4) B

5) B

6) D

7) B

8) D

9) B

10) C

11) A

12) A

13) B

14) D

15) B

16) D

17) C

18) C

19) B

20) D

21) D

22) C

23) D

24) B

25) D

26) A

27) C

28) D

29) B

30) A

31) B

32) D

33) C

34) D

35) D

36) D

37) D

38) C

39) C

40) A

41) B

42) D

43) C

44) D

45) A

46) C

7