Main content

### Course: Differential Calculus > Unit 3

Lesson 9: Second derivatives# Second derivatives (implicit equations)

You might need: Calculator

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

You might need: Calculator