Question

What is the inverse of the function f(x) = 4x + 8?

O h(x) = 1/4x -2
O H(X) = 1/4x +2
o h(x) = 1/2x -2
o h(x) = 1/2x+2
n(x) = 3x+2

Answer 1

(A) h(x) = 1/4x -2

Explanation:

Given: f(x)=4x+8

Rewrite with y: y=4x+8

Switch x and y: x=4y+8

Solve for y: x-8=4y

(x-8)/4=y

1/4x-2=y

y=1/4x-2

This means that h(x) = 1/4x -2 is the correct answer