Chapter 6 Quiz

1.

1 point

What is the slope of the line y = 5?

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5

x

0

2.

1 point

Which of the following is not true?

Vertical lines have a slope of 0

Horizontal lines have a slope of 0

Parallel lines have the same slope

Perpendicular lines have slopes that are negative reciprocals

3.

1 point

Which of the following equations would be perpendicular to y = 1/3x - 7?

y = 1/3x

y = 3x + 7

y = -1/3x - 4

y = -3x + 4

4.

1 point

For the equation y = 3x - 5 which of the following is true:

The slope is 3 and the y-intercept is -5

The slope is -5 and the y-intercept is 3

The slope is 3 and the y-intercept is 5

The slope is -5 and the y-intercept is -3

5.

1 point

Given the following equation 4x + 5y + 20 = 0, what would the x-intercept and y-intercept be?

x-intercept = 5 ; y-intercept = 4

x-intercept = -5 ; y-intercept = -4

x-intercept = -4 ; y-intercept = -5

x-intercept = 4 ; y-intercept = 5

6.

1 point

The lines represented by the equations y = 1/2x + 4 and y = -2x -7 are:

parallel

perpendicular

neither

7.

1 point

An line has a slope of 5 and a y-intercept of -2, which of the following would be the correct equation of the line?

y = -2x + 5

y = 2x - 5

y = 5x - 2

y = 5x + 2

8.

1 point

What is the slope of the line x = 3

y

3

0

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9.

1 point

Which of the following equations would be a vertical line?

y = 8

x = -3

y = -x

y = 6x + 4

10.

1 point

Given the following equation x + 3y = 9, what would the x-intercept and y-intercept be?

x-intercept = 9 ; y-intercept = 3

x-intercept = - 9 ; y-intercept = -3

x-intercept = 3 ; y-intercept = 9

x-intercept = -3 ; y-intercept = -9

11.

1 point

Given the equation 4x + 2y + 6 = 0 in standard form, convert into y = mx + b and state which of the following would be the y-intercept and slope:

y-intercept = 6 ; slope = 4

y-intercept = -2 ; slope = 3

y-intercept = 3 ; slope = 2

y-intercept = -3 ; slope = -2

13.

1 point

Given the equation 3x + y + 12 = 0 in standard form, which of the following would be the correct equation in slope/y-intercept form:

y = -3x - 12

y = 3x + 12

y = -3x + 12

y = 3x - 12

14.

1 point

Which of the following equations would be parallel to y = 2x - 7?

y = 2x + 1

y = x - 7

y = 7x - 2

y = -2x + 10

15.

1 point

A line has a y-intercept of 5 and an x-intercept of 4, what is the slope?

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0

4/5

- 5/4

16.

1 point

Which of the following equations would be a horizontal line?

y = 4

y = 2x +7

x = 3

y = -3x - 4