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

Answer 1

`f(x)=4x+8\\y=4x+8\\x=4y+8\\\\`

Proceed the inverse. Swap the x and y.

`x-8=4y\\(x)/(4)-(8)/(4)=y\\y=h(x)\\h(x)=(x)/(4)-2\\h(x)=(1)/(4)x-2`

So the answer is first one.