Question

What is the equation for f-1(x)? Help needed 10 points math 3!!!

Answer 1

A.

`{f}^( - 1) (x) = 4x - 3`

Step-by-step explanation

Given

`f(x) = (x + 3)/(4)`

Let

`y= (x + 3)/(4)`

Interchange x and y

`x= (y + 3)/(4)`

Solve for y,

`4x = y + 3`

y=4x-3

This implies that,

`{f}^( - 1) (x) = 4x - 3`