# Chain rule

Practice applying the chain rule.

### Problem

The following table lists the values of functions f and h, and of their derivatives, f, prime and h, prime, for the x-values minus, 2 and 4.
xf, left parenthesis, x, right parenthesish, left parenthesis, x, right parenthesisf, prime, left parenthesis, x, right parenthesish, prime, left parenthesis, x, right parenthesis
minus, 212minus, 728minus, 11
46minus, 251
Let function H be defined as H, left parenthesis, x, right parenthesis, equals, f, left parenthesis, h, left parenthesis, x, right parenthesis, right parenthesis.
H, prime, left parenthesis, 4, right parenthesis, equals