Question

What is the inverse of this function?
f(1)
3
r + 12

Answer 1

C

Explanation:

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

y =
`\sqrt[3]{x+12}` ( cube both sides )

y³ = x + 12 ( subtract 12 from both sides )

y³ - 12 = x

change y back into terms of x with x =
`f^(-1)` (x) , then

`f^(-1)` (x) = x³ - 12