Question

Select the correct answer.
Which function is the inverse of ?

Answer 1

The answer is b I think

Answer 2

B.
`f^(-1)(x) = (x + 3)/(9)`

Explanation:

`let \space\ y = f(x)\\\\y = 9x -3\\`

• Now make x the subject of the equation:

`9x = y + 3\\\\x = (y + 3)/(9) \\`

• Replace x with f⁻¹(x) and y with x:

`f^(-1)(x) = (x + 3)/(9)`