Ellipse: Reflective Property
- Tim Brzezinski
In the applet below, a tangent line is drawn to a point P on an ellipse with foci F1 and F2. Interact with the following applet for a few minutes. As you do, be sure to change the locations of the big black points before re-sliding the slider. Be sure to answer the questions that follow the applet.
Questions: 1) Take the phenomena you've observed and describe it in words as best as you can. 2) How could you formally prove your assertion?