Question

Use the piecewise function graph to the right to find:

Answer 1

a) f(-8) = 1

b) f(-4) = 5

c) f(2) is undefined

Explanation:

f(x) notation means "the function of x". Therefore, for f(-8) you need to find the y value when x = -8. Locate -8 on the x-axis and then follow up (or down) until you meet the curve/line. Then find the corresponding y-coordinate of this point.

From inspection of the graph:

a) f(-8) = 1

b) f(-4) = 5

c) f(2) is undefined