Operations with Functions Evaluating Functions

Evaluate f(33)

• 33

• 11

• 10

• 8

What is the value of f(0)?

• -2

• 2

• 4

• 0

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

• After 5 week the plant is 4 inches tall

• The plant grows at a rate of 5/4 inch per week

• After 4 weeks the plant is 5 inches tall

• The plant grows at a rate of 1 inch per week

Function or Not a Function?

• Function

• Not a Function

State the domain:

• (-oo, 7) U (7, oo)

• (-oo, -7) U (7, oo)

• (7, oo)

• [7, oo)

State the domain:

• (-oo, oo)

• (-oo, -2) U (-2, 2) U (2, oo)

• (-2, oo)

• [-2, oo)

If f(x) = 2x + 1, what would be your first step to find f(1)?

• Plug a 1 in for all the x's

• Set the function equal to 1

• Only plug a 1 into the left side

• Only plug a 1 into the right side

f(x)=4x+5
f(4)=

• 21

• -11

• -31

• 25

• 1

• 2

• 3

• 4

• 1

• 2

• 3

• 4