Quiz about Unit 3 Review: Linear Equations

Question 1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Accepted Answer

D:{0, 1, 2, -4}
R:{1, -3, -4}

Answer

D: {1, -3, -4,}
R: {0, 1, 2, -4}

Answer

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

Question 2

Question 2.

Accepted Answer

B

Answer

A

Answer

C

Answer

D

Question 3

Give the y-interecept
3x + y = 5

Accepted Answer

(0,5)

Answer

(-3, 0)

Answer

(-5, 0)

Answer

(0, -3)

Question 4

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

Accepted Answer

(8, 0)

Answer

(0, 8)

Answer

(3, 0)

Answer

(0, 3)

Question 5

What would the graph of y = 8 look like?

Accepted Answer

Horizontal line

Answer

Vertical line

Answer

Slanted line

Answer

No way to tell

Question 6

Find the rate of change.

Accepted Answer

-2 gallons per minute

Answer

-2 minutes per gallon

Answer

-20 minutes per gallon

Answer

-20 gallons per minute

Question 7

Which company shows a greater rate of change?

Accepted Answer

Water's Edge Rafts

Answer

Ryan's Rafts

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

Write the equation for the line in slope-intercept form.

Accepted Answer

y= 4x+3

Answer

y= -1x+3

Answer

y=1/4x+3

Answer

y= -4x+3

Question 10

find the slope

Accepted Answer

3/2

Answer

-3/2

Answer

(-0,-3)

Answer

none of the above

Question 11

If m=3 and b=6, what is the correct slope intercept equation?

Accepted Answer

y=3x+6

Answer

y=3-6

Answer

y=3x-6

Answer

y=6x+3

Question 12

Write the equation in point-slope form of the line that passes through the given point and has the given slope:
(-2, -1); m= -3

Accepted Answer

y + 1 = -3(x + 2)

Answer

y + 1 = -3(x - 2)

Answer

y - 1 = 3(x - 1)

Answer

y + 2 = -3(x + 1)

Question 13

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 14

For the equation
y + 1 = -3(x - 5),
the line contains the point (5, -1) and has a slope of?

Accepted Answer

-3

Answer

-1

Answer

1

Answer

5

Question 15

Find the x and y intercepts
4x - 5y = 40

Accepted Answer

x intercept is 10
y intercept is -8

Answer

x intercept is 10
y intercept is 8

Answer

x intercept is 10
y intercept is 20

Answer

x intercept is 8
y intercept is 10

Question 16

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 17

What is the linear parent function?

Accepted Answer

f(x) = x

Answer

y = mx + b

Answer

f(x) = 2x

Answer

f(x)  = y

Question 18

How did the equation shift from the parent function? y=x+2

Accepted Answer

translated up 2

Answer

translated down 2

Answer

steeper

Answer

translated right 2

Question 19

Find the slope of the line.

Accepted Answer

Undefined

Answer

0

Answer

1/1

Answer

-1/1

Question 20

A man is climbing down from 100 feet high descending 30 feet per minute.

Accepted Answer

y = 100 - 30x

Answer

y = 100 + 30x

Answer

y = 100x + 30

Answer

y = 100x - 30

Question 21

Jacob collects hats.  He has 6 hats already, and he collects 2 hats a week.

Accepted Answer

y = 2x + 6

Answer

y = 6x + 2

Answer

y = 2x - 6

Answer

y = 6x - 2

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