Answer
$y=x$
Work Step by Step
The inverse of a one-to-one function $f$ is the one-to-one function $f^{-1}$ that
consists of the set of all ordered pairs $(y,x)$ where $(x,y)$ belongs to $f$ .
Points $(x,y)$ and $(y,x)$ are symmetric in relation to the line
$y=x.$
