Question

Given the value evaluate this function
f(x) = -8x+20; 5-2 [f(-1)]​

Answer 1

-51

Explanation:

f(x) = -8x+20

5 - 2 * f(-1)

First find f(-1)

f(-1) = -8*-1+20 = 8+20 = 28

Then

5 - 2 * 28

5 - 56

-51