Finding the Location of the Axes, the Vertices and the Foci of a Parabola, an Ellipse and a Hyperbola Using a Straightedge and a Compass

We present geometrical constructions using a straightedge and a compass in order to find the location of the axes, the vertices and the foci of a parabola, an ellipse and a hyperbola from their plots. The constructions are based on familiarity with theorems and special properties characterizing these loci, which therefore can be used for implementing and applying knowledge acquired during the studies of analytical geometry.

For more information contact author

Moshe Stupel
Shaanan  Academic College of Education, and Gordon Academic College of Education, Haifa, Israel.
Shaanan – Academic College of Education, Haifa, Israel.
Gordon Academic College, Haifa, Israel.
E-mail: stupel@bezeqint.net

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