# Thinking W/ Math Models Question Preview (ID: 797)

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Review For Unit Test.

**Solve for x. -5x + 7 = 2x - 7**

a) x = 7

b) x - -2

c) x = -7

d) x = 2

**What is the slope of the line y = 3/4 x - 1/3?**

a) -1/3

b) 1/3

c) 3/4

d) -3

**Write an equation of a line parallel to the line y = 1/3x -7**

a) y = -1/3x - 7

b) y = -3x

c) y = 1/3x + 7

d) y = 3x -7

**What is the y-intercept of the line y = -3x - 7?**

a) 3

b) -3

c) -7

d) 7

**Write the equation of the line going through (4, -8) with slope -2.**

a) y = -2x

b) y = -2x +8

c) y = -8x -2

d) y = -2x - 8

**Write the equation of the line with slope -5 and y-intercept 6.**

a) y = 6x -5

b) y = -6x + 5

c) y = -5x -6

d) y = -5x + 6

**Solve for x. 3x - 8 = 5x + 6**

a) x = 7

b) x = -2

c) x = -7

d) x = 14

**Find the slope of the line through the points (-2, 4) and (6, -12).**

a) m = 1/8

b) m = -8

c) m = -2

d) m = 2

**Write the equation of a line parallel to y = 4x - 8 going throughthe point (0, 8).**

a) y = 1/4x + 8

b) y = -4x + 8

c) y = -1/4x + 8

d) y = 4x + 8

**Which line is perpendicular to y = 7x - 4**

a) y = -1/7x + 8

b) y = 1/4x -3

c) y = -7x - 4

d) y = 7x + 4

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