Question

Question 25 of 34
5 Points
If f(x) = 5x - 6, which of these is the inverse of f(x)?

Answer 1

`f^(-1)` (x ) =
`(x+6)/(5)`

Explanation:

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

y = 5x - 6 ( add 6 to both sides )

y + 6 = 5x ( divide both sides by 5 )

x =
`(y+6)/(5)`

Change y back into terms of x

`f^(-1)` (x ) =
`(x+6)/(5)`