Question

PLEASE HELP Is it a,b,c,or d

Answer 1

f(x) = -5x - 4

Replace f(x) with x and x with y

x = -5y - 4

Let's solve for y. Add 4 to both sides.

x + 4 = -5y

Divide both sides by -5

-1/5x - 4/5 = y

Replace y with f^-1(x)

f^-1(x) = -1/5x - 4/5 is the inverse