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Proof without Words: The Reflection Property of the Parabola

by Ayoub B. Ayoub (Pennsylvania State University)

This article originally appeared in:
Mathematics Magazine
June, 1991

Subject classification(s): Geometry and Topology | Analytic Geometry | Conics
Applicable Course(s): 3.1 Mainstream Calculus I | 4.9 Geometry

The reflection property of the parabola is demonstrated visually.

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Capsule Course Topic(s):
One-Variable Calculus | Background
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