Intro to Functions Review

f(x)=-5x+3 Find f(4).

What is the corresponding coordinate point for the function f(-3)=2?

• (2,-3)

• (-3,2)

• (3,-2)

• (2,3)

What is the input of the function g(4)=12?

What is f(2)?

• 2

• 3

• 4

• 5

Function H gives the height of a giraffe in feet when it is m months old. What does H(11)=15 mean in words in this context?

• When the giraffe is 11 months old, it is 15 feet tall.

• When the giraffe is 15 months old, it is 11 feet tall.

• H of eleven equals fifteen

• The giraffe weighs more at 15 months than 11 months.

Which is greater: f(5) or f(10)?

• f(5)

• f(10)

h(x)=1/3x-5 Find h(-6).

Function F gives the weekly profit of a florist based on how many bouquets they sold. What is the input/ independent variable?

• profit

• bouquet

• $

• F

Function W gives the weight (in lbs) of a piglet at m months. What does W(3)=40 mean in words?

• At 40 months old, the pig weighs 3 lbs.

• At 3 lbs, the pig is 40 months old.

• At 3 months old, the pig weighs 40 lbs.

• The pig is heavier at 40 months than at 3 months.

Function W gives the weight of a piglet when it is m months old. What is the output/ dependent variable?

• months

• piglet

• m

• weight