- Esther Gruenhut
- Algebra, Conic Sections, Ellipse, Parabola
Use the scroll bar in the following applet.
The original applet:
Given a line, A is a point on the line and F a point not on the line. Move point A along the line and Trace the perpendicular bisector of segment AF. Clear the trace, move point F (clear the trace again) and try over again.