Quiz about Writing Function Rules

Question 1

A pizzeria charges $12 per pizza plus an additional $3 for delivery. Which equation represents the cost of having any number of pizzas delivered?

Accepted Answer

c = 12p + 3

Answer

c = 12p

Answer

c = 3p

Answer

c = 12 + 3p

Question 2

Find the function rule.

Accepted Answer

y = 2x+3

Answer

y = 2x

Answer

y = 3x+3

Answer

y = -2x+3

Question 3

Find the function rule.

Accepted Answer

y = -2x +10

Answer

y = -2x -10

Answer

y = 2x +10

Answer

y = 2x-10

Question 4

A plumber charges a service fee of $40 plus $25 per hour for labor.
(A) Write a function rule for the total cost of hiring the plumber for a job that takes x hours.
(B) How much would it cost to hire the plumber for a job that takes 4 hours?

Accepted Answer

(A) y = 40 + 25x
(B) $140

Answer

(A) y = 40x + 25
(B) $185

Answer

(A) y = 40 + 25x
(B) $185

Answer

(A) y = 40x + 25
(B) $140

Question 5

The school cafeteria has 285 cartons of milk in stock. Each day, a total of 60 cartons are sold. Which function rule best represents this situation?

Accepted Answer

y = 285 - 60x

Answer

y = 285x + 60

Answer

y = 285x - 60

Answer

y = 285 + 60x

Question 6

A water tank holds 84 gallons. When it began to leak it lost 3 gallons every hour. Write an equation to find the amount of water "y" the tank will have after "x" number of hours.

Accepted Answer

y = 84 - 3x

Answer

y = 3 - 84x

Question 7

Write the function rule for the following table.

Accepted Answer

5x + 1

Answer

5x

Answer

x + 5

Answer

x + 1

Question 8

The output is eight less than three times the input.

Accepted Answer

y = 3x - 8

Answer

3x - 8

Answer

y = 8 - 3x

Answer

8 - 3x

Question 9

The output is 4 less than half the input.

Accepted Answer

y = x/2 - 4

Answer

y = 2x - 4

Answer

y = 4 - 2x

Answer

y = 4 - x/2

Question 10

At what rate did the rain fall?

Accepted Answer

2 cm per hour

Answer

¹/₄ cm per hour

Answer

¹/₂ cm per hour

Answer

4 cm per hour

Question 11

Which rate of change represents the graph shown?

Accepted Answer

-15 feet per minute

Answer

15 feet per minute

Answer

-200 feet per minute

Answer

200 feet per minute

Question 12

What is the rate of change in the equation?
y=8x+6

Accepted Answer

8

Answer

6

Question 13

What is the initial value?

Accepted Answer

20

Answer

-3

Answer

0

Answer

3

Question 14

What is the initial value in this table?

Accepted Answer

6

Answer

-2

Answer

2

Answer

14

Question 15

Tim bought a new phone.  He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the rate of change in this situation?

Accepted Answer

50

Answer

125

Question 16

What is the initial value of this graph?

Accepted Answer

1

Answer

-2

Answer

0

Answer

3

Question 17

A plumber charges $50 to make a house call plus $40 for each hour worked. What is the expression and what does he make if he worked 5 hours?

Accepted Answer

50 + 40x; $250

Answer

50x + 40; $290

Answer

50x + 40x; $450

Answer

90x; $450

Question 18

What could this represent? 7x + 2 = 30

Accepted Answer

Buying pet turtles for $7 each plus two cans of turtle food cost $30.

Answer

Seven bags of candy plus 2 extra snickers bars equals 30 dollars.

Answer

Two yoyos plus seven frisbees is thirty cents.

Answer

Buying seven calculators plus $2 per bundle of pencils is $30.

Question 19

Bob's Plumbing charges $15 per hour plus a service fee of $40 for coming out to your house. Which equation models this situation?

Accepted Answer

y = 15x + 40

Answer

y = 40x + 15

Answer

y = 15x

Answer

y = 15x - 40

Question 20

A holiday meal cost $12.50 a person plus a delivery fee of $30. Which equation represents the amount a holiday meal costs(y), including delivery, for x people?

Accepted Answer

y = 30 + 12.50x

Answer

y = 12.50 + 30x

Answer

y = 12.50 + 30

Answer

12.50x = 30

Question 21

Eddie's Electric charges $90 per hour plus a $50 traveling fee. Which equation models this scenario?

Accepted Answer

y = 90x + 50

Answer

y = -50x + 90

Answer

y = -90 - 50x

Answer

y = 50 - 90x

Question 22

Which equation matches the table?

Accepted Answer

y = x + 5

Answer

y = 5x

Answer

y = x - 5

Answer

x = y - 5

Question 23

Which equation matches the table?

Accepted Answer

y = x + 4

Answer

y = x

Answer

y = 5x

Answer

y = x - 4

Question 24

Is the ordered pair (4, 9) a solution to the equation: y = x + 5?

Accepted Answer

yes

Answer

no

Question 25

Is the ordered pair (6, 33) a solution to the equation:

7x - 9 = y

Accepted Answer

yes

Answer

no

Question 26

What type of slope does the graph have?

Accepted Answer

Zero

Answer

Undefined

Answer

Negative

Answer

Positive

Question 27

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 28

What is the y-intercept in the equation y= -2x + 5

Accepted Answer

5

Answer

-2

Answer

3

Answer

Cannot be Determined

Question 29

What is the equation of this line?

Accepted Answer

y = -x + 2

Answer

y = 2x +2

Answer

y = 2x -2

Answer

Cannot be Determined

Question 30

find the slope

Accepted Answer

3/2

Answer

-3/2

Answer

(-0,-3)

Answer

none of the above

Question 31

Find the slope of the line that passes through
(1, -19) and (-2, -7)

Accepted Answer

-4

Answer

4

Answer

1/4

Answer

-1/4

Question 32

What is the slope in the picture?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Undefined

Question 33

What is the slope in the picture?

Accepted Answer

Positive

Answer

Negative

Answer

Zero

Answer

Undefined

Question 34

What is the slope in the picture?

Accepted Answer

Negative

Answer

Positive

Answer

Zero

Answer

Undefined

Question 35

What is the slope in this picture?

Accepted Answer

Undefined

Answer

Positive

Answer

Negative

Answer

Zero

Question 36

Write the equation of the graph.

Accepted Answer

y = 1/2x + 3

Answer

y = 2x + 3

Answer

y = -2x -3

Answer

y = -1/2x - 3

Question 37

Write the equation of the graph

Accepted Answer

y = 3x + 2

Answer

y = -3x + 2

Answer

y = 1/3x + 2

Answer

y = -1/3x + 2

Question 38

Write the equation of a graph.

Accepted Answer

y = -3x - 3

Answer

y = 3x + 3

Answer

y = -3x + 3

Answer

y = 3x - 3

Question 39

Write the equation of the graph.

Accepted Answer

y = -6/5x + 2

Answer

y = 6/5x + 2

Answer

y = 5/6x + 2

Answer

y = -5/6x + 2

Question 40

Write the equation of a graph.

Accepted Answer

y = -2/3x - 2

Answer

y = 2/3x - 2

Answer

y = 3/2x - 2

Answer

y = -3/2x - 2

Question 41

Find the equation of the line that passes through the points:
(-4, -2) and (-3, 5)

Accepted Answer

y = 7x + 26

Answer

y = ¹/₇ x + 26

Answer

y = -7x + 26

Answer

y = -7x - 26

Question 42

Find the equation of the line that passes through the points:

(3, 4) and (0, -5)

Accepted Answer

y = 3x - 5

Answer

y = 3x + 5

Answer

y = -3x + 4

Answer

y = -3x + 4

Question 43

Find the equation of the line that passes through the points:

(2, 2) and (3, 4)

Accepted Answer

y = 2x - 2

Answer

y = 2x + 2

Answer

y = -2x - 2

Answer

y = -2x + 2

Question 44

Find the equation of the line that passes through the points:

(-2, 4) and (1, 10)

Accepted Answer

y = 2x + 8

Answer

y = 2x - 1

Answer

y = -2x + 1

Answer

y = -2x

Question 45

Write equation of the line containing (6,3) and (4,1)

Accepted Answer

y = 1x - 3

Answer

y = -1x + 5

Answer

y = 1x + 5

Answer

y = -1x + 3

Question 46

Who is this character?

Accepted Answer

Captain America

Answer

Falcon

Answer

Captain Marvel

Answer

Thor

Question 47

Who are these guys?

Accepted Answer

The Guardians of the Galaxy

Answer

Justice League

Answer

Avengers

Answer

The F.B.I.

Question 48

Who is this character?

Accepted Answer

Ant Man

Answer

Captain America

Answer

Star Lord

Answer

Spiderman

Writing Function Rules

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