Chapter 2 - Functions and Graphs - Exercise Set 2.7 - Page 309: 57

$f^{-1}(g(10)) = 2$

1. $f^{-1}(g(10))$ $g(10) = -1$ $f^{-1}(-1) = 2$ For the inverse, remember that the $x$ and $y$ (In this case, $f(x)$) switches positions. So $f(x) = -1$ and $x = 2$ is swapped when you have the inverse function.