Question

1. Find f(-4) if f(x) = -11x + 7

Answer 1

x= 3/11

Explanation:

Since you replace f(x) with 4,

4=-11x+7

-3=-11x

-3/-11=x

Answer 2

51

Explanation:

f(-4); f(x) = -11x + 7

f(x-4) = -11(-4) + 7

f(x-4) = 44 + 7

f(x-4) = 51

I basically just plugged -4 in for the value of the x's, and solved the equation.