Function Notation Worksheet Page 2

5. Given this graph of the function f(x):

f(x)

-5

Find:

a. f(–4) =

b. f(0) =

c. f(3) =

d. f(-5) =

e. x when f(x) = 2

f. x when f(x) = 0

6. Find an equation of a linear function given h(1) = 6 and h(4) = –3.

(NOTE: Same as write the equation of the line given two points!)

APPLICATION

7. Swine flu is attacking Porkopolis. The function below determines how many people have swine

where t = time in days and S = the number of people in thousands.

 t



) (

a. Find S(4).

b. What does S(4) mean?

c. Find t when S(t) = 23.

d. What does S(t) = 23 mean?

e. Graph the function.

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