## Whitman College: David Guichard's "Calculus, Chapter 4: Transcendental Functions, Section 4.8: Implicit Differentiation"

Read Section 4.8 (pages 87-90). As a result of the chain rule, we have a method for computing derivatives of curves which are not explicitly described by a function. This method, called implicit differentiation, allows us to find tangent lines to such curves.