Functions Quiz

If f(v) = 4v - 9, Find f(2s)

• f(s) = 2v

• f(v) = 18

• f(2s) = 8s - 9

• f(2s) = 4 - 9

Tags

CCSS.HSF.IF.A.2

If g(x) = -4x -2, Find g(x) = -42

• x = 10

• g(x) = 10

• y = 10

• x = - 8

Tags

CCSS.HSF.IF.A.2

10 -  $\frac{x}{3}$  = 5x + 2

• 7

• 4.3

• 1.5

• -1.5

-10 + 3x + 2x = 3(-2x + 5 + 4)

• 3.467826

• 12

• 5

• 3 $\frac{4}{11}$

What is the solution set for -4x + 10  $\ge$  5x +55

• x  $\ge$  -5

• x  $\ge$  45

• x  $\le$  -5

• x  $\le$  -45

The daily cost of hiring a plumber, y, to work x hours on a repair project can be modeled using a linear function. The plumber charges a fixed cost of $80 plus an additional cost of $45 per hour. The plumber works a maximum of 8 hours per day. For one day of work, what is the range of the function for this situation?

• 0 $\le$ x $\le$ 8

• 80 $\le$ y $\le$ 440

• 0 $\le$ x $\le$ 10

• 45 $\le$ y $\le$ 685

A set of weights includes a 7 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 30 lbs. If x pairs of plates are added to the barbell, the total weight of the barbell and plates in pounds can be represented by f(x) = 30x + 7. What is the range of the function for this situation?

• { 0 , 1 , 2 , 3 , 4 , 5 , 6}

• { 7, 37, 67, 97, 127, 157, 187}

• { 0 , 2 , 4 , 6}

• { 7, 37, 67, 97 }

If f(v) = 7(v² + 3) + 18, what is the value of f(12)?

• 1078

• 1047

• -1047

• 385

Tags

CCSS.HSF.IF.A.2

What are the domain and range of f(v) = -77

• Domain: f(v)
  
  Range: -77

• Domain: All Real Numbers
  
  Range: -77

• Domain: -77
  
  Range: All Real Numbers

• Domain: All Real Numbers
  
  Range: All Real Numbers

Given f(v) =  $\frac{1}{4}$  $\left(9-v\right)^2$  , what is the value of f(16)?

• -8

• -6.25

• 8

• 6.25

Tags

CCSS.HSF.IF.A.2