The Ellipse

The College of Southern Idaho provides videos that require Windows Media Player 6.0 or higher, a free download.
Graph ellipses centered at the origin. Write equations of ellipses in standard form.
Graph ellipses not centered at the origin.
Write equations of ellipses in standard form.
Solve applied problems involving ellipses.

Dr. Jacci White of St. Leo University recorded this video that also requires Real Player.