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Parabola--Distance with Focus and Directrix

Author:
Sue Popelka
Topic:
Conic Sections, Parabola
A parabola is the set of points that are equidistant from a point, called the focus (Point A) and a line, called the directrix Move point P to show how these distance are equal. You can also move the directrix and the focus to see how the shape of the parabola changes.

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