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The Vortex
Author:
Steve Phelps
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Ellipse as Envelope - Correspondence Method
Ellipse, Hyperbola and Circle as Envelopes
Slope Field (1)
Rotating Points (Optical Illusion)
Drag that Point!
Discover Resources
parabola general equation 2
Rectangle Properties Investigation
Exam1_59317963
Animation 1(GER)
Exit Slip: 1.2/1.3A
Discover Topics
Square
Combinatorics
Exponent
Quadratic Equations
Difference and Slope