WRITE THE FUNCTION RULE

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?

• (A) y = 40 + 25x
  (B) $140
• (A) y = 40x + 25
  (B) $185
• (A) y = 40 + 25x 
  (B) $185
• (A) y = 40x + 25 
  (B) $140

Tags

CCSS.HSF-BF.A.1A

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

Find the function rule.

• y = 2x

• y = 2x+3

• y = 3x+3

• y = -2x+3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What is the initial value in this table?

• -2
• 2
• 6
• 14

Tags

CCSS.HSF-LE.A.1B

Identify the slope and y-intercept of:
y = 1/5x + 5

• slope: 1/6   y-intercept:  4 
• slope: 1/5   y-intercept:  5 
• slope: 5/1   y-intercept:  5 
• slope: 1   y-intercept:  5 

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the definition of a function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

Which of the following has a y-intercept of 3?

• y = 3x +2
• x=3
• y=2x+3
• y=x

Tags

CCSS.HSF-IF.C.7A

Elliot wants to sign up for a gym membership. The gym require a $35 fee to sign up, then $12 every month. Write an equation to find the amount Elliot will pay for his gym membership "C(m)" after "m" amount of months.

• C(m) = 35m + 12

• C(m) = 12m + 35

• C(m) = 12m - 35

Tags

CCSS.HSF-BF.A.1A

Find  $f\left(3\right)$  when  $f\left(x\right)=4x-9$  

•  $f\left(3\right)=34$  

•  $f\left(3\right)=3$  

•  $f\left(3\right)=21$  

•  $f\left(3\right)=43-9$  

Tags

CCSS.HSF.IF.A.2

What is $f\left(-2\right)$  for  $f\left(x\right)=x^3-8$  

•  $f\left(-2\right)=-16$  

•  $f\left(-2\right)=0$  

•  $f\left(-2\right)=-14$  

•  $f\left(-2\right)=-2$  
  

Tags

CCSS.HSF.IF.A.2