Given the following piece wise function evaluate f(-7)

Answer:
f(- 7) = - 57
Step-by-step explanation:
To evaluate f(- 7) substitute x = - 7 into f(x) = 7x - 8, since condition is
f(x) = 7x - 8 for x ≥ - 7, thus
f(- 7) = 7(- 7) - 8 = - 49 - 8 = - 57