Chapter 5 Test, Form 2ANAME DATE PERIOD

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© Glencoe/McGraw-Hill 325 Glencoe Algebra 1

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Write the letter for the correct answer in the blank at the right of each question.

1. What is the slope of the line through (1, 9) and (!3, 16)?

A. !"74" B. !"

47" C. !"

225" D. !"2

25" 1.

2. What is the slope of the line through (!4, 3) and (5, 3)? A. 0 B. undefined C. 9 D. 1 2.

3. Find the value of r so that the line through (8, r) and (4, 5) has a slope of !4.A. 11 B. !11 C. 4 D. !4 3.

4. In 1995, there were 12,000 students at Beacon High. In 2000, there were 12,250. What is the rate of change in the number of students?A. 250/yr B. 50/yr C. 42/yr D. 200/yr 4.

5. Which is the graph of y # "23"x?

A. B. C. D. 5.

6. If y varies directly as x and y # 3 when x # 10, find x when y # 8.

A. "830" B. "

152" C. "

145" D. none of these 6.

7. A driver’s distance varies directly as the amount of time traveled. After 6 hours, a driver had traveled 390 miles. How far had the driver traveled after 4 hours?A. 130 miles B. 220 miles C. 260 miles D. 650 miles 7.

8. A line of fit might be defined asA. a line that connects all the data points.B. a line that might best estimate the data and be used for predicting values.C. a vertical line halfway through the data.D. a line whose slope is greater than 1. 8.

9. What is the slope-intercept form of the equation of a line with slope 5 and y-intercept !8?A. y # !8x $ 5 B. y # 8x ! 5 C. 5x ! y # ! 8 D. y # 5x ! 8 9.

10. Which equation is graphed at the right?A. 2y ! x #10 B. 2x $ y # !5C. 2x ! y # 5 D. 2y $ x # !5 10.

11. Which is an equation of the line that passes through (2, !5) and (6, 3)?

A. y # "12"x ! 6 B. y # "

12"x

C. y # 2x $ 12 D. y # 2x ! 9 11.

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© Glencoe/McGraw-Hill 326 Glencoe Algebra 1

Chapter 5 Test, Form 2A (continued)

12. What is the standard form of the equation of the line through (0, !3) with

slope "25"?

A. !5x $ 2y # 15 B. !5x ! 2y # !15C. 2x ! 5y # 15 D. !2x $ 5y # 15 12.

13. Which is an equation of the line with slope !3 and a y-intercept of 5?A. y # !3(x $ 5) B. y ! 5 # !3x C. !3x $ y # 5 D. y # 5x ! 3 13.

14. What is the standard form of y ! 7 # !"23"(x $1)?

A. !2x $ 3y # 23 B. !3x $ 2y # 17 C. 2x $ 3y # 19 D. 3x $ 2y # 11 14.

15. What is the equation of the line through (!2, !3) with a slope of 0?A. x # !2 B. y # !3 C. !2x ! 3y # 0 D. !3x $ 2y # 0 15.

16. Find the slope-intercept form of the equation of the line that passes through (!5, 3) and is parallel to 12x ! 3y # 10.A. y # !4x ! 17 B. y # 4x ! 13 C. y # ! 4x $ 13 D. y # 4x $ 23 16.

17. If line q has a slope of !"38", what is the slope of any line perpendicular to q?

A. !"38" B. "

38" C. "

83" D. !"

83" 17.

For Questions 18 and 19, use the scatter plot at the right.

18. Which data are shown by the scatter plot?A. (1980, 5.5), (1982, 6.1), (1989, 7.6)B. (1980, 5.5), (1985, 6.1), (1989, 7.6)C. (1980, 5.5), (1985, 6.6), (1990, 8.0)D. (1980, 5.5), (1982, 6.6), (1990, 8.0) 18.

19. Based on the data in the scatter plot, what would you expect the y value to be for x # 1995?A. between 7 and 8 B. higher than 8C. between 5 and 7 D. impossible to tell 19.

20. To calculate the charge for a load of bricks, including delivery, the Redstone Brick Co. uses the equation C # 0.42b $ 25, where C is the charge and b is the number of bricks. What is the delivery fee per load?A. $42 B. $67C. $25 D. It depends on the number of bricks 20.

Bonus What is the y-intercept of a line through (2, 7) and

perpendicular to the line y # !"32"x $ 6? B:

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