Question

Find the inverse of the function f(x) = 4x-1

Answer 1

Answer:

first option

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 4x - 1 ( add 1 to both sides )

y + 1 = 4x ( divide both sides by 4 )

$\frac{y+1}{4}$ = x

Change y back into terms of x with x = $f^{-1}$(x)

$f^{-1}$(x) = $\frac{x+1}{4}$

Answer 2

The choice one is the correct x+1/4