Khan Academy: Pre Calculus: Parametric Equations 4

The final video in a series on parametric equations from the Khan Academy. This video continues with the same two parametric equations presented in previous video. However, this segment shows how a different set of parametric equations can be converted into the very same Cartesian equation. The new equations define the same path, but if a particle were in motion along the path, these equations define that motion differently. The point is emphasized once again that parametric equations provide different, and often more useful, information than Cartesian equations. [13:04]