Function Rules

Find the function rule for the function table.

• 2/n
• n + 2
• 2n
• n - 2

Tags

CCSS.8.F.A.1

CCSS.8.F.A.2

CCSS.8.F.B.4

Write the function rule for the following table.

•  5x
• 5x + 1
•  x + 5
•  x + 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Patrick earns $20 for every lawn that he mows. Write an equation used to find t, the total amount of money he earns from mowing n lawns.

• n = 20t
• t = 20n
• t = n + 20
• t = n - 20

Tags

CCSS.6.EE.C.9

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

• c = 12p + 3
• c = 12p
• c = 3p
• c = 12 + 3p

Tags

CCSS.8.F.A.1

CCSS.8.F.B.4

CCSS.8.SP.A.2

CCSS.8.SP.A.3

The output is four times the input.

• y = x/4
• 4x
• y = 4x
• y = x +4

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

The number of multiple-choice questions on a test is ten times the number of open-ended questions.  Write a function that describes the relationship.

• y = 10x
• x = 10y
• y = 10 + x
• x = 10 + y

Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

Find the function rule.

• y = 2x

• y = 2x+3

• y = 3x+3

• y = -2x+3

Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.3

Find the function rule.

• y = -2x +10
• y = -2x -10
• y = 2x +10
• y = 2x-10

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Identify the function rule that best represents the following statement:
A bottle rocket is being launched from the roof of an 80 meter tall building. If the rocket travels straight up at a rate of 22 m/s, what is the total height of the rocket as a function of time?

• H = 108x
• H = 80 - 22x
• H = 80 + 22x
• H = 80x + 22

Tags

CCSS.HSF-BF.A.1A

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Tags

CCSS.8.F.A.1

CCSS.8.F.A.3

CCSS.8.F.B.5