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Parametric Equations



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Videos, worksheets, games and activities to help PreCalculus students learn about parametric equations.

What are parametric equations?
We can describe our plane curves in terms of x, for eg. y = f(x),
or in terms of y for eg. x = f(y).
Sometimes, it is useful to have a third variable or parameter. This parameter is usually t. When both x and y are defined as a function of t, we have parametric equations.
x = f(t) and y = g(t).
The graph of parametric equations make a plane curve.

Introduction to parametric equations
This video defines a parametric equations and shows how to graph a parametric equation by hand.
Parametric Equations 1
Introduction to parametric equations



Parametric Equations 2
Eliminating the parameter
Parametric Equations 3
Removing the parameter from a more interesting example


Parametric Equations 4
Parametric Equations that "move" along the same path


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