Answer
$f^{-1}=\{(5,2), (-7,10), (-10, 11)\}$
Work Step by Step
$f=\{(2,5), (10,-7), (11,-10)\}$
The domain of the function is the range of it's Inverse function. the range of the function is the domain of it's inverse function.
Thus, $f^{-1}=\{(5,2), (-7,10), (-10, 11)\}$