Exam Review
1st Semester
Algebra I
Topics Covered
Chapter 2 – Equations and Functions Chapter 3 – Graphing Linear Equations Chapter 4 – Solving Equations and Inequalities Chapter 7 – Systems of Linear Equations and
Inequalities
Chapter 1 – Using Algebra to Work with Data
Working with Variables and Data Order of Operations Mean, Median, Mode and Graphs Operations with Integers Exploring Negative Numbers Exploring Variable Expressions Applying Variable Expressions Working with Data
Chapter 2 – Equations and Functions
Solving Equations Solving Multi-step Equations Applying Functions Coordinate Graphs Representing Functions Using Graphs to Solve Problems
Chapter 3 – Graphing Linear Equations
Applying Rates Find Slope Equations of Lines Writing an Equation of a Line Modeling Linear Data
Chapter 4 – Solving Equations and Inequalities
Solving Problems using Tables and Graphs Solving Multi-step Equations Equations with Fractions or Decimals Writing Inequalities from Graphs Solving Inequalities
Chapter 5 –Connecting Algebra and Geometry
Ratio and Proportion Scale Measurements Similarity Perimeter and Area Probability Geometric Probability
Chapter 6 – Working with Radicals
The Pythagorean Theorem
Chapter 7 – Systems Linear Eqns and Ineqs
Using Linear Equations in Standard Form Solving Systems of Equations
Graphing Substitution Elimination (Multiplication)
Linear Inequalities Systems of Linear Inequalities
Chapter Seven
Solving Systems of Linear Equations
and Linear Inequalities
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-10
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5
10
Standard form
Graph. State the slope, x- and y-intercepts.
2x + 5y = 20
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-5
5
10
Standard form
Graph. State the slope, x- and y-intercepts.
3x – 2y = 5
Standard form
Write the following in standard form.y = 2x + 5
Standard form
Write the following in standard form.
22
3y x
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-10
-5
5
10
Solving Systems of Equations:By Graphing
Solve the given system by graphing.
x + y = -3
x – y = 13
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-10
-5
5
10
Solving Systems of Equations:By Graphing
Solve the given system by graphing.
2x + 5y = 10
3x + y = 15
Solving Systems of Equations:By Substitution
Solve the given system by substitution.-x + 4y = 10
3x + y = 9
Solving Systems of Equations:By Substitution
Solve the given system by substitution. x – 3y = 4
3x – 2y = 6
Solving Systems of Equations:By Elimination
Solve the given system by elimination. 2x – 3y = 4
3x – 2y = 8
Solving Systems of Equations:By Elimination
Solve the given system by elimination. 5x – 2y = -9
3x + 4y = 5
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-10
-5
5
10
Linear Inequalities
Graph 2x - 3y ≤ 6
Linear Inequalities
Identify the linear inequality shown.
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5
10
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5
10
Systems of Linear Inequalities
Graph2x + 3y ≤ 6x – 2y ≥ 5
Systems of Linear Inequalities
Identify the system of linear inequalities shown.
Chapter Six
Working with Radicals
Pythagorean Theorem
Find the missing leg length.
48
Pythagorean Theorem
Is a triangle with side lengths 4, 5, 6 a right triangle? Justify your answer.
Chapter Five
Connecting Algebra and Geometry
Ratio and Proportion
1 2
1x x
Ratio and Proportion
800 children a day ride on the roller coaster, but another 200 are turned away because they're not tall enough. What proportion of the total number of children are turned away?
Ratio and Proportion
At Washington High School, two out of every three students usually buys a yearbook. How many yearbooks should the school plan for if there are 1460 students at the school?
Ratio and Proportion
Methane is a compound consisting of a 1 : 4 ratio of carbon and hydrogen atoms. If a sample of methane contains 1565 atoms, how many carbon and hydrogen atoms are present?
Scale Factor
Nathan plans to include a map in his report on Africa. The map he has is 6 in. wide and 8 in. long. He wants to use a photocopier to enlarge the map so that it fills the width of the page.
What scale factor should he use to make the map 7.5 in. wide?
How long will the enlarged map be?
Similarity
A tree 48 feet high casts a shadow 36 feet long. If a flag pole casts a shadow 12 feet long, the height of the flag pole is
Perimeter and Area
The perimeters of ABC is 2 ft. The perimeter of DEF is 15 in. These two figures are similar.
Find the ratio of the corresponding side lengths.
Find the ratio of the areas.
Probability
A six sided die was rolled 60 times. 1 came up 10 times, 2 came up 9 times, 3 came up 15 times, 4 came up 8 times, 5 came up 7 times. What is the theoretical and the experimental probability of getting an even roll?
Geometric Probability
Find the area of the shaded region.
Geometric Probability
Find the area of the shaded region.
Chapter Four
Solving Equations and Inequalities
Solving Problems using Tables and Graphs
At Homecoming, 2000 tickets were sold at the football game. Adult tickets sold for $7.50 and student tickets solve for $5.00. The total revenue was $11,625.00. How many student tickets were sold? How many adult tickets were sold?
Solving Multi-step Equations
3( 4) 2 4 6x x x
Solving Multi-step Equations
xxx 311)3(4
Equations with Fractions or Decimals
2 3 1
3 4 2x x
Equations with Fractions or Decimals
6.5 3.9 2.9n n
Writing Inequalities from Graphs
y > 0
Writing Inequalities from Graphs
x ≤ 3
Solving Inequalities
xx 831
Solving Inequalities
5
43
2
xx
Chapter Three
Graphing Linear Equations
Applying Rates
How many miles per hour is 44 ft/s?
Applying Rates
How many feet per second is 100 mph?
Find Slope
Find the slope of a line that passes through (-6, -1) and (-1, 4).
Find Slope
Find the slope of a line that passes through (1, -3) and (-2, 8).
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5
10
Equations of Lines
Find an equation of the graphed line.
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5
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Equations of Lines
Find an equation of the graphed line.
Writing an Equation of a Line
Find the equation of a line that passes through (-6, 2) and has a slope of -2/3.
Writing an Equation of a Line
Find the equation of a line that passes through (-4, 1) and (-6, 2) .
Chapter Two
Equations and Functions
Solving Equations
415
1x
Solving Equations
16534 xxx
Solving Multi-step Equations
17510)30(5 x
Solving Multi-step Equations
7)96(4
3x
Applying Functions
The cost of making T-shirts is $5 per shirt plus $150 for printing supplies. What is the cost of making 100 T-shirts?
Applying Functions
You have moved to a new city and plan to join the Racquet Club. The membership fee is $250 and you must pay $ 7 every time you use a court. If your bill from the Racquet Club was $630, how many times did you play racquetball?
Coordinate Graphs
In the figure, is a rectangle with center at the origin. If the coordinates of A are (3, 4), the coordinates of C are
Representing Functions
If the x-coordinate of a function is three times that of the y-coordinate, the function would be represented by
Using Graphs to Solve Problems
It took Myron 90 minutes, at an average rate of 50 miles per hour, to drive home from a business trip. Which of these graphs best represents Myron’s drive home?
Chapter One
Using Algebra to Work with Data
Working with Variables and Data
Write an algebraic expression to represent the following expression:
the difference in six times a number and nine
Working with Variables and Data
Write an algebraic expression to represent the following expression:
the sum of twice a number and three
Order of Operations
32 23
2( 3) 9 3 (3 4)3
Order of Operations
7 6(8 3)
Mean, Median, Mode, Graphs
Find the mean, median, and mode:
26, 26, 27, 27, 42, 42, 44, 44, 44, 60
Mean, Median, Mode, Graphs
What is the meanpoints scored by the starting players?
Operations with Integers
22 2 6 2 1
Exploring Negative Numbers
Simplify the following expression if a = -2 and b = -3.2 22a ab b
Operations with Variable Expressions
2 23 2 4 2( 2 3)x x x x
Operations with Variable Expressions
3( 4) 2( 2)x x
Applying Variable Expressions
The cost of making T-shirts is $3.50 per shirt plus $150 for printing supplies. What is the cost of making 250 T-shirts?
Working with Data