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Essay by   •  February 6, 2011  •  Study Guide  •  972 Words (4 Pages)  •  916 Views

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Ch7-Ch8 Cumulative test

1. Find the slope and y-intercept.

x = -9

A) Slope: 0; y-intercept: (0, -9) C) Slope: 0; y-intercept: none

B) Slope: undefined; y-intercept: (0, -9) D) Slope: undefined; y-intercept: none

2. Match the graph with one of the equations.

A) B) C) y = -3x + 1 D) y = 3x + 1

3. Match the graph with one of the equations.

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

4. Match the graph with one of the equations.

A) B) C) y = 2x - 1 D)

5. Determine which two equations represent parallel lines.

(a) y = x + 3

(b) y = x - 8

(c) y = 3x + 11 (d) y = 3x - 3

A) (a) and (b) B) (b) and (c) C) (a) and (d) D) (c) and (d)

6. Determine which two equations represent parallel lines.

(a) y = x + 4

(b) y = x + 9

(c) y = x - 9

(d) y = - x + 9

A) (a) and (b) B) (b) and (c) C) (a) and (d) D) (c) and (d)

7. Determine which two equations represent perpendicular lines.

(a) y = 2x - 9 (b) y = x + 9

(c) y = - x + 9

(d) y = x - 9

A) (a) and (c) B) (b) and (c) C) (a) and (d) D) (c) and (d)

8. Are the following lines parallel, perpendicular, or neither?

L1 through (-4, -7) and (1, 3)

L2 through (2, 6) and (4, 10)

A) Parallel B) Perpendicular C) Neither

9. Write the equation of the line that passes through point (0, -9) with a slope of 6.

A) y = -9x + 6 B) -9x + 6y = 0 C) y = 6x - 9 D) 6y = -9

10. Write the equation of the line that passes through point (-1, 4) with a slope of 0.

A) x = -1 B) x = 4 C) y = -1 D) y = 4

11. Write the equation of the line passing through (-3, -5) and (3, 0).

A) B) C) D)

12. Write the equation of the line passing through (6, -10) and (6, -6).

A) x = 6 B) y = 6 C) y = x + 6 D) y = 4x

13. Graph the inequality.

y  -4

A)

B)

C)

D)

14. Given f(x) = 5x2 - 3x + 1, find f(-2).

A) -13 B) 15 C) -25 D) 27

15. Given f(x) = -5x - 1, find f(a - 1).

A) -5a + 4 B) -5a - 2 C) a - 7 D) a + 4

16. Rewrite

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