Question

Find the inverse of each of the given functions.

f(x) = 4x − 12

Answer 1

To find the inverse function, let y=f(x), then solve for 'x', the 'x' later will be your inverse function,
\[f(x) = 4x − 12\]
\[y=4x-12\]
\[y+12=4x\]
\[\frac{y+12}{4}=x\]

\[f^{-1}(x)=\frac{x+12}{4}\]