### Home > APCALC > Chapter 8 > Lesson 8.3.2 > Problem 8-117

8-117.

Suppose , such that

*and*

*are differentiable. If*

*and*

*, determine the value of*

*.*

Recall that for inverse functions. In other words,

*and*

*are inverse functions.*

Inverse functions have reciprocal slopes at corresponding