Answer
$f^{-1}(0)=2$
Work Step by Step
The inverse of a function differs from the original function in that all the x-coordinates and y-coordinates have been switched.
To find the value of $f^{-1}(2)$, we have to find the corresponding x-coordinate to $y=0$ in the original $f(x)$ function..
We can see the graph of $f(x)$ contains $(2, 0)$.
Thus, when $y=0$, $x=2$.
Therefore $f^{-1}(0)=2$.
