Name: ______________________ Class: _________________ Date: _________ ID: A

1

Algebra Chapter 5 (pearson) REVIEW

The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.

____ 1. The table shows the number of miles driven over time.Time (hours) Distance (miles)

4 220

6 330

8 440

10 550

a. 155

; Your car travels 55 miles every 1 hour.

b. 220; Your car travels 220 miles.c. 10; Your car travels for 10 hours.

d. 551

; Your car travels 55 miles every 1 hour.

Find the slope of the line.

____ 2.

a. 32

b. 23

c. − 23

d. − 32

Name: ______________________ ID: A

2

____ 3.

a. – 32

b. 32

c. − 23

d. 23

What is the slope of the line that passes through the pair of points?

____ 4. (2, 8), (6, –1)

a. − 49

b. − 94

c. 49

d. 94

____ 5. (1, 2), (− 34

, − 27

)

a. − 4964

b. 4964

c. 6449

d. − 6449

What is the slope of the line?

____ 6.

a. undefined b. 0

Name: ______________________ ID: A

3

____ 7.

a. undefined b. 0

Does the equation represent a direct variation? If so, find the constant of variation.

____ 8. 2x = −6y

a. yes; k = − 13

b. yes; k = −3 c. yes; k = 13

d. no

____ 9. 6x − 5y = 0

a. no b. yes; k = 65

c. yes; k = −5 d. yes; k = − 65

____ 10. Suppose y varies directly with x, and y = 14 when x = 8. What direct variation equation relates x and y? What is the value of y when x = –7?

a. y = − 74

x; 494

c. y = 114

x; 47

b. y = 74

x; − 494

d. y = 47

x; −4

Name: ______________________ ID: A

4

____ 11. An enclosed gas exerts a pressure P on the walls of a container. This pressure is directly proportional to the temperature T of the gas, measured in Kelvin. If the pressure is 7 lb per square inch when the temperature is 420ºK, find the constant of variation and draw the graph of the equation.

a. 49 c. 149

b. 160

d. 45

For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.

____ 12. x y4 188 36

12 54

a. no; y does not vary directly with x c. yes; y = 4.5xb. yes; y = 2.25x d. yes; y = 9x

Name: ______________________ ID: A

5

What are the slope and y-intercept of the graph of the given equation?

____ 13. y = 83

x − 35

a. The slope is − 35

and the y-intercept is 83

.

b. The slope is 83

and the y-intercept is − 35

.

c. The slope is 38

and the y-intercept is 35

.

d. The slope is 35

and the y-intercept is 83

.

Write an equation of a line with the given slope and y-intercept.

____ 14. m = −4, b = −1a. y = −4x + 1 c. y = −4x – 1

b. y = − 14

x – 1 d. y = −x – 4

Write the slope-intercept form of the equation for the line.

____ 15.

a. y = 23

x + 1 c. y = 23

x − 1

b. y = 32

x + 1 d. y = − 32

x + 1

Name: ______________________ ID: A

6

____ 16.

a. y = − 710

x − 12

c. y = − 12

x + 710

b. y = − 107

x + 12

d. y = 710

x + 12

What equation in slope intercept form represents the line that passes through the two points?

____ 17. (5, 8), (7, –3)

a. y = 112

x − 712

c. y = 211

x + 712

b. y = − 211

x − 712

d. y = − 112

x + 712

Name: ______________________ ID: A

7

Graph the equation.

____ 18. y = 2x + 1a. c.

b. d.

Name: ______________________ ID: A

8

____ 19. y = –4x + 5a. c.

b. d.

Name: ______________________ ID: A

9

____ 20. Giselle pays $200 in advance on her account at the athletic club. Each time she uses the club, $5 is deducted from the account. Model the situation with a linear function and a graph.

a.

b = 200 – 5x

c.

b = 195 + 5xb.

b = 200 + 5x

d.

b = 195 – 5x

Write an equation in point-slope form for the line through the given point with the given slope.

____ 21. (2, 9); m = –5a. y − 9 = −5(x − 2) c. y + 9 = −5 x + 2b. y − 9 = −5 (x + 2) d. y + 9 = −5 (x − 2)

____ 22. (–2, –3); m = –1.5a. y – 3 = –1.5(x + 2) c. y + 3 = –1.5(x + 2)b. y + 2 = –1.5(x + 3) d. y – 3 = –1.5(x – 2)

Name: ______________________ ID: A

10

Graph the equation.

____ 23. y + 3 = 3(x – 2)a. c.

b. d.

Name: ______________________ ID: A

11

What is an equation of the line?

____ 24.

a. y – 2 = 47

(x – 2) c. y + 2 = 74

(x + 2)

b. y + 5 = 47

(x + 2) d. y + 2 = − 74

(x – 2)

____ 25. The table shows the height of an elevator above ground level after a certain amount of time. Model the data with an equation. Let y stand for the height of the elevator in feet and let x stand for the time in seconds.

Time (s) Height (ft)

10 277

20 264

40 238

60 212

a. y = 290x − 1.3 c. y = −1.3x + 290b. y = −1.3 + 277 d. y = 10x + 277

Find the x- and y-intercept of the line.

____ 26. 3x – y = 6a. x-intercept is –6; y-intercept is 2 c. x-intercept is 2; y-intercept is –6b. x-intercept is –1; y-intercept is 3 d. x-intercept is 3; y-intercept is –1

Name: ______________________ ID: A

12

____ 27. 58

x − 2y = –8

a. x-intercept is 4; y-intercept is − 645

c. x-intercept is 645

; y-intercept is 4

b. x-intercept is − 645

; y-intercept is 4 d. x-intercept is 645

; y-intercept is −4

Match the equation with its graph.

____ 28. 6x + 4y = 24a. c.

b. d.

Name: ______________________ ID: A

13

What is the graph of the equation?

____ 29. y = –3a. c.

b. d.

Name: ______________________ ID: A

14

____ 30. x = 3a. c.

b. d.

____ 31. Write y = 38

x + 5 in standard form using integers.

a. –3x + 8y = 40 c. –3x + 8y = 5b. –3x – 8y = 40 d. 8x – 3y = 40

____ 32. The video store rents DVDs for $4.00 each and video games for $2.00 each. Write an equation in standard form for the number of DVDs d and video games g that a customer could rent with $14.a. 4d = 2g + 14 c. 4d + 2g = 14b. 4 + 2 = d d. 4g + 2d = 14

____ 33. The grocery store sells dates for $4.25 a pound and pomegranates for $2.00 a pound. Write an equation in standard form for the weights of dates d and pomegranates p that a customer could buy with $22.a. 4.25d + 2p = 22 c. 4.25p + 2d = 22b. 4.25d = 2p + 22 d. 4.25 + 2 = d

Name: ______________________ ID: A

15

Write an equation for the line that is parallel to the given line and passes through the given point.

____ 34. y = 2x – 7; (3, –8)a. y = 2x – 14 c. y = 2x + 19

b. y = − 12

x + 14 d. y = 12

x – 14

____ 35. y = 12

x – 9; (2, –17)

a. y = 12

x – 18 c. y = 2x – 18

b. y = −2x + 18 d. y = 12

x + 212

Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.

____ 36. y = − 76

x + 10

18x – 21y = –9a. parallel b. perpendicular c. neither

____ 37. y = 56

x + 11

15x – 18y = –15a. parallel b. perpendicular c. neither

Write the equation of a line that is perpendicular to the given line and that passes through the given point.

____ 38. 4x – 2y = –28; (–4, –8)

a. y = 12

x – 10 c. y = − 12

x – 10

b. y = −2x – 10 d. y = −2x – 8

Name: ______________________ ID: A

16

What type of relationship does the scatter plot show?

____ 39.

a. positive correlationb. negative correlationc. no correlation

____ 40.

a. positive correlationb. negative correlationc. no correlation

Name: ______________________ ID: A

17

____ 41.

a. positive correlationb. negative correlationc. no correlation

____ 42. The scatter plot shows the number of mistakes a piano student makes during a recital versus the amount of time the student practiced for the recital. How many mistakes do you expect the student to make at the recital after 9 hours of practicing?

a. 57 mistakes c. 48 mistakesb. 52 mistakes d. 38 mistakes

Name: ______________________ ID: A

18

In the following situations, is there likely to be a correlation? If so does the correlation reflect a causal relationship? Explain.

____ 43. the number of hours spent studying for a test and your test marka. There is a positive correlation and also a causal relationship. The more you study for

a test the better your mark is likely to be.b. There is a negative correlation. The more you study for a test, the worse your mark

is likely to be.c. There is no correlation.

____ 44. the average daily winter temperature and your heating billa. There is a positive correlation. The higher the average daily winter temperature the

higher your heating bill.b. There is a negative correlation and a causal correlation. The higher the average daily

winter temperature the lower your heating bill.c. There is no correlation.

____ 45. What do you expect the slope of the line to be from looking at the graph?

a. The slope is positiveb. The slope is negative

ID: A

1

Algebra Chapter 5 (pearson) REVIEWAnswer Section

1. ANS: D PTS: 1 DIF: L3 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.1 To find rates of change from tables NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.b TOP: 5-1 Problem 1 Finding Rate of Change Using a Table KEY: find rate of change | interpret rate of change

2. ANS: D PTS: 1 DIF: L3 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 2 Finding Slope Using a Graph KEY: slope

3. ANS: B PTS: 1 DIF: L3 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 2 Finding Slope Using a Graph KEY: slope

4. ANS: B PTS: 1 DIF: L2 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 3 Finding Slope Using Points KEY: slope

5. ANS: C PTS: 1 DIF: L4 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 3 Finding Slope Using Points KEY: slope

6. ANS: B PTS: 1 DIF: L3 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 4 Finding Slopes of Horizontal and Vertical Lines KEY: slope

7. ANS: A PTS: 1 DIF: L3 REF: 5-1 Rate of Change and SlopeOBJ: 5-1.2 To find slope NAT: CC F.IF.6| CC F.LE.1.b| A.2.a| A.2.bTOP: 5-1 Problem 4 Finding Slopes of Horizontal and Vertical Lines KEY: slope

8. ANS: A PTS: 1 DIF: L3 REF: 5-2 Direct VariationOBJ: 5-2.1 To write and graph an equation of a direct variation NAT: CC N.Q.2| CC A.CED.2| A.2.a| A.2.b TOP: 5-2 Problem 1 Identifying a Direct Variation KEY: direct variation | constant of variation for a direct variation

9. ANS: B PTS: 1 DIF: L3 REF: 5-2 Direct VariationOBJ: 5-2.1 To write and graph an equation of a direct variation NAT: CC N.Q.2| CC A.CED.2| A.2.a| A.2.b TOP: 5-2 Problem 1 Identifying a Direct Variation KEY: direct variation | constant of variation for a direct variation

10. ANS: B PTS: 1 DIF: L3 REF: 5-2 Direct VariationOBJ: 5-2.1 To write and graph an equation of a direct variation NAT: CC N.Q.2| CC A.CED.2| A.2.a| A.2.b TOP: 5-2 Problem 2 Writing a Direct Variation Equation KEY: direct variation | constant of variation for a direct variation

11. ANS: B PTS: 1 DIF: L4 REF: 5-2 Direct VariationOBJ: 5-2.1 To write and graph an equation of a direct variation NAT: CC N.Q.2| CC A.CED.2| A.2.a| A.2.b TOP: 5-2 Problem 3 Graphing a Direct Variation KEY: direct variation | constant of variation for a direct variation | choosing the correct scale

ID: A

2

12. ANS: C PTS: 1 DIF: L3 REF: 5-2 Direct VariationOBJ: 5-2.1 To write and graph an equation of a direct variation NAT: CC N.Q.2| CC A.CED.2| A.2.a| A.2.b TOP: 5-2 Problem 4 Writing a Direct Variation From a Table KEY: direct variation | constant of variation for a direct variation

13. ANS: B PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.1 To write linear equations using slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 1 Identifying Slope and y-interceptKEY: linear equation | y-intercept | slope-intercept form

14. ANS: C PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.1 To write linear equations using slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 2 Writing an Equation in Slope-Intercept Form KEY: linear equation | slope-intercept form | y-intercept

15. ANS: B PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 3 Writing an Equation From a GraphKEY: slope-intercept form | linear equation | y-intercept

16. ANS: A PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 3 Writing an Equation From a GraphKEY: slope-intercept form | linear equation | y-intercept

17. ANS: D PTS: 1 DIF: L2 REF: 5-3 Slope-Intercept FormOBJ: 5-3.1 To write linear equations using slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 4 Writing an Equation From Two PointsKEY: linear equation | y-intercept | slope-intercept form

18. ANS: D PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 5 Graphing a Linear FunctionKEY: linear equation | y-intercept | slope-intercept form

19. ANS: C PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 5 Graphing a Linear FunctionKEY: linear equation | y-intercept | slope-intercept form

20. ANS: A PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 6 Modeling a FunctionKEY: linear equation | y-intercept | slope-intercept form | choosing the correct scale

ID: A

3

21. ANS: A PTS: 1 DIF: L2 REF: 5-4 Point-Slope FormOBJ: 5-4.1 To write and graph linear equations using point-slope formNAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-4 Problem 1 Writing an Equation in Point-Slope Form KEY: point-slope form

22. ANS: C PTS: 1 DIF: L3 REF: 5-4 Point-Slope FormOBJ: 5-4.1 To write and graph linear equations using point-slope formNAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-4 Problem 1 Writing an Equation in Point-Slope Form KEY: point-slope form

23. ANS: B PTS: 1 DIF: L3 REF: 5-4 Point-Slope FormOBJ: 5-4.1 To write and graph linear equations using point-slope formNAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-4 Problem 2 Graphing Using Point-Slope FormKEY: point-slope form

24. ANS: C PTS: 1 DIF: L3 REF: 5-4 Point-Slope FormOBJ: 5-4.1 To write and graph linear equations using point-slope formNAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-4 Problem 3 Using Two Points to Write an EquationKEY: point-slope form

25. ANS: C PTS: 1 DIF: L3 REF: 5-4 Point-Slope FormOBJ: 5-4.1 To write and graph linear equations using point-slope formNAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-4 Problem 4 Using a Table to Write an EquationKEY: point-slope form

26. ANS: C PTS: 1 DIF: L2 REF: 5-5 Standard FormOBJ: 5-5.1 To graph linear equations using intercepts NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 1 Finding x- and y-interceptsKEY: x-intercept | standard form of a linear equation

27. ANS: B PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.1 To graph linear equations using intercepts NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 1 Finding x- and y-interceptsKEY: x-intercept | standard form of a linear equation

28. ANS: C PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.1 To graph linear equations using intercepts NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 2 Graphing a Line Using InterceptsKEY: standard form of a linear equation

29. ANS: C PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.1 To graph linear equations using intercepts NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 3 Graphing Horizontal and Vertical LinesKEY: standard form of a linear equation

ID: A

4

30. ANS: C PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.1 To graph linear equations using intercepts NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 3 Graphing Horizontal and Vertical LinesKEY: standard form of a linear equation

31. ANS: A PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.2 To write linear equations in standard form NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 4 Transforming to Standard FormKEY: standard form of a linear equation

32. ANS: C PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.2 To write linear equations in standard form NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 5 Using Standard Form as a ModelKEY: standard form of a linear equation

33. ANS: A PTS: 1 DIF: L3 REF: 5-5 Standard FormOBJ: 5-5.2 To write linear equations in standard form NAT: CC N.Q.2| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.IF.9| CC F.BF.1.a| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-5 Problem 5 Using Standard Form as a ModelKEY: standard form of a linear equation

34. ANS: A PTS: 1 DIF: L2 REF: 5-6 Parallel and Perpendicular Lines OBJ: 5-6.2 To write equations of parallel lines and perpendicular linesNAT: CC G.GPE.5| A.2.a| A.2.b TOP: 5-6 Problem 1 Writing an Equation of a Parallel LineKEY: parallel lines

35. ANS: A PTS: 1 DIF: L3 REF: 5-6 Parallel and Perpendicular Lines OBJ: 5-6.2 To write equations of parallel lines and perpendicular linesNAT: CC G.GPE.5| A.2.a| A.2.b TOP: 5-6 Problem 1 Writing an Equation of a Parallel LineKEY: parallel lines

36. ANS: B PTS: 1 DIF: L3 REF: 5-6 Parallel and Perpendicular Lines OBJ: 5-6.1 To determine whether lines are parallel, perpendicular, or neitherNAT: CC G.GPE.5| A.2.a| A.2.b TOP: 5-6 Problem 2 Classifying LinesKEY: perpendicular lines | parallel lines | compare properties of two functions

37. ANS: A PTS: 1 DIF: L3 REF: 5-6 Parallel and Perpendicular Lines OBJ: 5-6.1 To determine whether lines are parallel, perpendicular, or neitherNAT: CC G.GPE.5| A.2.a| A.2.b TOP: 5-6 Problem 2 Classifying LinesKEY: perpendicular lines | parallel lines | compare properties of two functions

38. ANS: C PTS: 1 DIF: L3 REF: 5-6 Parallel and Perpendicular Lines OBJ: 5-6.2 To write equations of parallel lines and perpendicular linesNAT: CC G.GPE.5| A.2.a| A.2.b TOP: 5-6 Problem 3 Writing an Equation of a Perpendicular Line KEY: perpendicular lines

ID: A

5

39. ANS: A PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.1 To write an equation of a trend line and of a line of best fitNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 1 Making a Scatter Plot and Describing Its CorrelationKEY: scatter plot | positive correlation | negative correlation

40. ANS: B PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.1 To write an equation of a trend line and of a line of best fitNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 1 Making a Scatter Plot and Describing Its CorrelationKEY: scatter plot | positive correlation | negative correlation

41. ANS: C PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.1 To write an equation of a trend line and of a line of best fitNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 1 Making a Scatter Plot and Describing Its CorrelationKEY: scatter plot | positive correlation | negative correlation

42. ANS: C PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.2 To use a trend line and a line of best fit to make predictionsNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 2 Writing an Equation of a Trend LineKEY: scatter plot | trend line

43. ANS: A PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.2 To use a trend line and a line of best fit to make predictionsNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 4 Identifying Whether Relationships Are Causal KEY: causation | positive correlation

44. ANS: B PTS: 1 DIF: L3 REF: 5-7 Scatter Plots and Trend LinesOBJ: 5-7.2 To use a trend line and a line of best fit to make predictionsNAT: CC N.Q.1| CC F.LE.5| CC S.ID.6| CC S.ID.6.a| CC S.ID.6.c| CC S.ID.7| CC S.ID.8| CC S.ID.9| D.1.c| D.2.e| D.5.d| A.2.a| A.2.b TOP: 5-7 Problem 4 Identifying Whether Relationships Are Causal KEY: causation | negative correlation

45. ANS: B PTS: 1 DIF: L3 REF: 5-3 Slope-Intercept FormOBJ: 5-3.2 To graph linear equations in slope-intercept form NAT: CC A.SSE.1.a| CC A.SSE.2| CC A.CED.2| CC F.IF.4| CC F.IF.7.a| CC F.BF.1.a| CC F.BF.3| CC F.LE.2| CC F.LE.5| A.2.a| A.2.b TOP: 5-3 Problem 3 Writing an Equation From a GraphKEY: slope-intercept form | linear equation | y-intercept