Points Equidistant from a focus and directrix

Play with the sliders to see that the only way to make all points equdistant from the focus and directrix is to arrange them in a parabolic shape.

 

David Cowan

 
Resource Type
Activity
Tags
directrix  foci  focus  parabola 
Target Group (Age)
3 – 19+
Language
English
 
 
GeoGebra version
5.0
Views
687
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