Quiz about Unit 4 Test Review: Linear equations

Question 1

In slope intercept form (y=mx+b) what is the "m"?

Accepted Answer

The slope (rate of change)

Answer

The y-intercept

Answer

The x-intercept

Answer

A point

Question 2

In slope intercept form (y=mx+b) what is the "b"?

Accepted Answer

The y-intercept

Answer

The x-intercept

Answer

The slope (rate of change)

Answer

A point

Question 3

Which equation represents the following graph?

Accepted Answer

y = 2x + 3

Answer

y = 3x + 2

Answer

y = -2x + 3

Answer

y = -3x + 2

Question 4

What is the y-intercept in the equation?
y = 5x - 4

Accepted Answer

-4

Answer

5

Answer

-5

Answer

4

Question 5

Find the equation of the line in slope-intercept form.

Accepted Answer

y = 1/3x -3

Answer

y = - 1/4x - 3

Answer

y = 1/3x + 3

Answer

y = - 1/4x + 2

Question 6

What is the y-intercept for the given graph?

Accepted Answer

-1

Answer

-5

Answer

5

Answer

1

Question 7

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 8

Find the slope of the line that passes through
(10, 1) and (5, 2)

Accepted Answer

-1/5

Answer

1/5

Answer

5

Answer

-5

Question 9

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2

Answer

-2

Question 10

Which equation is being represented by this line?

Accepted Answer

y = -1x + 2

Answer

y = 1/2x + 2

Answer

y = 3x -4

Answer

y = -3x +2

Question 11

Identify the y-intercept for the function:
y=-3x

Accepted Answer

0

Answer

-3

Answer

1

Answer

-1

Question 12

Which of the following is in slope-intercept form?

Accepted Answer

y=10x-7

Answer

y-5=3(x-1)

Answer

5x-y=12

Answer

6x+2y-15=0

Question 13

What type of slope does the graph have?

Accepted Answer

Undefined

Answer

Positive

Answer

Negative

Answer

Zero Slope

Question 14

What type of slope does the graph have?

Accepted Answer

Zero

Answer

Undefined

Answer

Negative

Answer

Positive

Question 15

How would you write the equation with a slope of 2/3 and a y-intercept of -3

Accepted Answer

y=2/3x-3

Answer

y=3/2x+3

Answer

y=2/3-3

Answer

y=2/3x+3

Question 16

Determine the slope and y-intercept from the following equation:   y = 3/2x + 3

Accepted Answer

slope: 3/2   y-intercept:  (0,3)

Answer

slope: 5   y-intercept:  (0,3)

Answer

slope:  4  y-intercept:  (0,3/2)

Answer

slope: 1/5   y-intercept:  (0,5)

Question 17

Find the slope from the table.

Accepted Answer

-4/1

Answer

1/4

Answer

-1/4

Answer

4/1

Question 18

Solve for y
8x + 2y = -10

Accepted Answer

y = -4x - 5

Answer

y = -8x + 5

Answer

y = -¹/₄ x - 10

Answer

y = -¹/₄ x - 5

Question 19

Write the equation of the line that passes through the point (1, -1) and has a slope of -4.
_{(hint: plot point on a graph and use m to find b)}

Accepted Answer

y = -4x + 3

Answer

y = -4x - 3

Answer

y = -4x + 5

Answer

y = -4x - 5

Question 20

Write equation of the line containing (4,2) and (3,5)
_{(hint: plot points on a graph)}

Accepted Answer

y = -3x + 14

Answer

y = 3x + - 4

Answer

y = -3x - 4

Answer

y = -3x + 10

Question 21

Write the equation of the line that passes through the point (1, -1) and has a slope of -4.
_{(hint: plot point on a graph and use m to find b)}

Accepted Answer

y = -4x + 3

Answer

y = -4x - 3

Answer

y = -4x + 5

Answer

y = -4x - 5

Question 22

Write in slope-intercept form:
-3x + 4y = 12

Accepted Answer

y = 3/4x + 3

Answer

y = -3/4 x + 3

Answer

y = -4x + 3

Answer

y = 4x + 3

Question 23

Give the x-intercept
3x + 8y = 24

Accepted Answer

(8, 0)

Answer

(0, 8)

Answer

(3, 0)

Answer

(0, 3)

Question 24

Give the y-interecept
3x + y = 5

Accepted Answer

(0,5)

Answer

(-3, 0)

Answer

(-5, 0)

Answer

(0, -3)

Question 25

The graph y=5 is...

Accepted Answer

a horizontal line

Answer

a vertical line

Question 26

Which of these represents point-slope form of a linear equation?

Accepted Answer

y - y₁ = m(x - x₁)

Answer

Ax + By = C

Answer

y = mx + b

Question 27

Which of these represents slope-intercept form of a linear equation?

Accepted Answer

Answer

y - y₁ = m(x-x₁)

Answer

Ax + By = C

Question 28

For the equation
y - 3 = 2(x + 4),
the line has a slope of 2 and contains what point?

Accepted Answer

(-4, 3)

Answer

(3, -4)

Answer

(-3, -4)

Answer

(-4, -3)

Question 29

Write the equation in point-slope form for the line that contains the points
(-2, -3), (4, 3)

Accepted Answer

y + 3 = 1(x + 2)

Answer

y - 3 = 1(x - 2)

Answer

y -3 = -1(x + 2)

Answer

y + 3 = -1(x - 2)

Question 30

Write in standard form.
y = -4x - 5

Accepted Answer

4x + y = -5

Answer

y = -3x + 5

Answer

4x - y = 5

Answer

-4x + y = -5

Question 31

Write in standard form.
2x - 8 = -3y + 2

Accepted Answer

2x + 3y = 10

Answer

2x - 3y = 10

Answer

2x + 3y = -6

Answer

2x - 3y = -6

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