Encourage investigation of the conic-section attributes of focus, eccentricity, directrix, and semi-latus rectum using polar coordinates and projective geometry.

Contributor Notes

Kent Thele, kentthele@johnpauliihs.org, teaches geometry and precalculus at John Paul II High School in Plano, Texas. He enjoys exploring mathematical concepts using graphing and dynamic geometry software.

(Corresponding author is Thele kentthele@johnpauliihs.org)
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