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GeoGebraGeoGebra Classroom

Copy of Conic Sections

The green line in the graph below shows the locus of points that satisfy the equation . You can
  • move the focus and points that define the directrix
  • change the eccentricity
  • Move the point labelled with 'Drag Me' to see the set of points satisfying the above relationship
What conditions are there on the eccentricity to make the locus
  1. a parabola
  2. a hyperbola
  3. an ellipse