Removing the parameter in parametric equations

Sal starts with parametric equations that give x and y as functions of t, and he manipulates the equations to get y as a function of x.

Parametric equations with the same graph

Sal shows how different parametric equations can result in the same relationship between x and y (and therefore with the same graph).

Current time: 0:00Total duration: 12:52

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# Removing the parameter in parametric equations (example 2)

Sal is given x=3cost and y=2sint and he finds an equation that gives the relationship between x and y (spoiler: it's an ellipse!). Created by Sal Khan.