Unit
Conic Sections
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
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MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
The definition of an ellipse is based on two fixed points, called the foci. The sum of the distances from each focus to any point on the ellipse is fixes. The foci always lie on the major axis of an ellipse at a distance "c" from the center, where a^2 - b^2 = c^2. The equation of the ellipse will tell you "a" and "b," which you use toe calculate "c."
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