Function Notation

What is another variable to think of as f(x)?

• x

• y

• input

• output

Evaluate the function when x = -2.

f(x) = x + 6

• -8

• 8

• 4

• -4

Evaluate the function when x = 0.

h(x) = -2x + 9

• 9

• 0

• 18

• -9

Evaluate the function when x = 5.

g(x) = 3x.

• 3/5

• 35

• 10

• 15

Evaluate the function when x = 4.
f(x) =  $18-\frac{1}{2}x$  

• 16

• 20

• 22

• -16

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Evaluate the function when h(x) = 63.

h(x) = -7x

• 441

• -441

• 9

• -9

Evaluate the function when x = 7.

f(x) = 6x - 12.

• 30

• 54

• -30

• -54

Evaluate the function when f(x) = 24.

f(x) = 3x

• 72

• -8

• 8

• 27

Evaluate the function when x = -2.

g(x) = 3x - 4

• -10

• -2

• 10

• 2

Evaluate the function when x = 10.
r(x) =  $\frac{1}{2}x\ +\ 5$  

• 10

• 0

• 5

• 20