Parametric Equations
More Lessons for PreCalculus
Math Worksheets
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.
Introduction to parametric equations
Eliminating the parameter
Removing the parameter from a more interesting example
Parametric Equations 4
Parametric Equations that "move" along the same path
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