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parabola - directrix

Author:Steve Weissburg

New Resources

挂谷问题——三尖瓣形
Perpendicular Lines: Quick Exploration
Right Triangle Inscribed in a Semicircle
Isosceles Right Triangle
Function art 3D - waiting shed (v2)

Discover Resources

Moving a Point on the Coordinate Grid
Sketch 4
Intersection points of two Implicit curves. Scanning Method.
Renert Aariz Pattern
quadrilatere particulier

Discover Topics

Functions
Median Line
Isosceles Triangles
Trapezoid
Optimization Problems

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