Here are the main points that will be addressed in the videos. Please read these and think about them as you watch.

- Implicit differentiation is a procedure which can be used as long as y is locally a function of x.
- If we treat as a function of locally, we can use the chain rule to take the derivative of both sides of an equation with respect to .
- For example, if we see a in an equation, the derivative with respect to would be , due to the chain rule.