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parabola - directrix

Author:Steve Weissburg

New Resources

Portions of a Sphere
Two Triangle Theorem
Proving Triangles Similar: Multistep Transformations
How to Draw a Cube in 2D
Folding door

Discover Resources

Conics by Polar Reciprocation
Graphing Lines
Midpoint (a)copy
Petrie–Coxeter Honeycomb
The fly's flight curve

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Linear Regression
Geometric Mean
Frequency Distribution
Probability
Correlation

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