Quadratic Compass

Author:Andrew Stacey

This shows the method of solving a quadratic using a ruler-and-compass construction. Drag the point "A" around on the screen to modify the quadratic and thus its roots.

New Resources

apec
Circle Passing Through 3 Points
Volume by Disk/Washer around y
Triangle with 3 Right Angles
Reflection Across 2 Parallel Lines

Discover Resources

Intuitive Derivative Graphing Exercise: REVAMPED!!!
AndrewKirk_parrallel
Function Notation Input and Output Practice
Reflecting about a Perpendicular Bisector (V2)

Discover Topics

Probability
Set Theory
Integers
Fractal Geometry
Scatter Plot