11.2 Ellipses

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Pre-Calculus

Conics

Ellipses

Last updated 4:41 PM on 8/4/22
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5 Terms

1
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Ellipse
The set of all points in the plane the sum of whose distances from 2 fixed points F1 and F2 is constant
The set of all points in the plane the sum of whose distances from 2 fixed points F1 and F2 is constant
2
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Foci
F1 and F2 are the _____ of the ellipse
3
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Major axis
The longest axis of an ellipse; passes through the two foci
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Minor axis
The shorter or shortest axis of an ellipse
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Eccentricity
A ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis
A ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis