Quiz about College Algebra, Slope

Question 1

Given that the slope is  -4 and the y intercept is -4 what is the equation of the line?

Accepted Answer

y = -4x - 4

Answer

y = 4x - 4

Answer

y = -4

Answer

y = -4x + 4

Question 2

Identify the slope and y intercept in the equation of the line: y = -1/3x + 1

Accepted Answer

Slope: -1/3
y-intercept: 1

Answer

Slope: 1/3
y-intercept: 1

Answer

Slope: 1/3
y-intercept: -1

Answer

Slope: -1/3
y-intercept: 0

Question 3

Identify the slope-intercept equation:

Accepted Answer

y = 2x + 4

Answer

y = 2x - 2

Answer

y = -2x + 2

Answer

y = -2x + 4

Question 4

What is the slope intercept form of the equation
-8x+2y=4

Accepted Answer

y= 4x + 2

Answer

y= 1/2 + 8x -4

Answer

y= 2 - 4x

Answer

y= 4x - 8y

Question 5

Change the following to slope-intercept form:

5x - 5y = 25

Accepted Answer

y = x - 5

Answer

y = 5x - 1

Answer

y = -x + 5

Answer

y = 5x + 1

Question 6

Find the slope of the following equation. (Hint: Get y alone)

y-5 = -2 (x +6)

Accepted Answer

-2

Answer

2

Answer

-7

Answer

7

Question 7

Find the slope of the line.

Accepted Answer

-5/4

Answer

5/4

Answer

-4/5

Answer

4/5

Question 8

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Accepted Answer

2

Answer

1/2

Answer

-1/2

Answer

-2

Question 9

Find the slope of the line.

Accepted Answer

0

Answer

Undefined

Answer

1

Answer

-1

Question 10

What direction is an undefined slope?

Accepted Answer

vertical

Answer

horizontal

Question 11

Dev keeps a record in graph form of how far his car travels and the number of gallons of gasoline it uses.
What is the slope of the graph?

Accepted Answer

32

Answer

64

Answer

128

Answer

16

Question 12

What is the y-intercept?

Accepted Answer

-3

Answer

2/3

Answer

3/2

Answer

3

Question 13

What is the equation of the line that goes through (3,4) and (9,-2)?  Use slope-intercept form.

Accepted Answer

y = -x + 7

Answer

y = x -7

Answer

y = 3x + 7

Answer

y = x + 7

Question 14

Which of the following lines is PARALLEL to the graph of 5x + 2y = 8?

Accepted Answer

-10x - 4y = 7

Answer

2x + 5y = 8

Answer

5x - 2y = 6

Answer

-10x + 4y = 9

Question 15

Write an equation of a line that passes through the point (5,-1) and is parallel to the line y = (-3/5)x -3

Accepted Answer

y = (-3/5)x + 2

Answer

y = (-3/5)x -2

Answer

y = (3/5)x + 2

Answer

y = (5/3) + 2

Question 16

Find the slope of the line that passes through
(-2, 8) and (0, 8)

Accepted Answer

0

Answer

-2

Answer

2

Answer

1/2

Question 17

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2

Answer

-2

Question 18

If two lines are perpendicular to each other their slopes are ____________

Accepted Answer

negative reciprocals of each other.

Answer

the same.

Question 19

Are these lines perpendicular?
y = 4x + 2
y = (-1/4)x + 12

Accepted Answer

YES

Answer

NO

Question 20

Write an equation of a line that passes through the point (-9,2) and is perpendicular to the line y = 3x - 12

Accepted Answer

y = (-1/3)x - 1

Answer

y = (1/3)x - 2

Answer

y = -3x + 12

Answer

y = 3x - 1

Question 21

Are these lines parallel?

y = (-1/2)x + 1

y = (1/2)x - 5

Accepted Answer

NO

Answer

YES

Question 22

Write an equation of a line that passes through the point (-2,3) and is parallel to the line x = 4

Accepted Answer

x = -2

Answer

y = -2

Answer

y = 2

Answer

x = 2

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