Question

or
Find f(8) for this piecewise-defined function.
f(x)=
3
8
x–4 if x<
–
3
2x–9 if x≥
–
3

Answer 1

8 ≥ −3, so use f(x) = 2x − 9. Thus f(8) = 2(8) − 9 = 16 − 9 = 7.