Question

Evaluate the piecewise-defined function.
f(x) =
4x if x < 0
5 − x if 0 ≤ x < 4
|x| if x ≥ 4

a. f(-0.5)
b. f(0)
c. f(4)

Answer 1

a. f(-0.5) --> x = -0.5 --> x<0 --> f(x) = 4x
b. f(0) ----> x = 0 ---> f(x) = 5-x
c. f(4) ---> x=4 ---> f(x) = |x|