Evaluating Function Notation

What is a function often compared to?

• A car

• A tree

• A machine

• A book

In the function notation f(x) = 3x + 2, what does 'f' represent?

• The output

• The name of the function

• The rule

• The input

What is the input in the function notation f(x) = 3x + 2?

• x

• 3x + 2

• The output

• f

How do you evaluate f(5) for the function f(x) = 3x + 2?

• Replace 2 with 5 and solve

• Replace 3 with 5 and solve

• Replace f with 5 and solve

• Replace x with 5 and solve

What is the output when the input is 5 for the function f(x) = 3x + 2?

• 15

• 17

• 20

• 22

For the function f(x) = 5x + 6, what is f(3)?

• 15

• 18

• 21

• 24

In the function g(x) = x^2 + 3x - 1, what is g(2)?

• 11

• 5

• 9

• 7

For the function g(x) = x^2 + 3x - 1, what is g(4)?

• 27

• 25

• 23

• 21

What is the output when the input is 5 for the function h(x) = 1/2x - 4?

• -1

• -1.5

• -2

• -2.5

What is the output of h(5) for the function h(x) = 1/2x - 4?

• 1.5

• -1.5

• 2.5

• -2.5