Hyperbola /haɪˈpɜːbələ/

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A hyperbola is an open curve with two branches, the intersection of a plane with both halves of a double cone. The plane may or may not be parallel to the axis of the cone. [http://en.wikipedia.org/wiki/Hyperbola].

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Hyperbola. Math is Fun

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Hyperbola. Purplemath

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Hyperbola. Khanacademy.org

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Hyperbola. Mathworld

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Drawing Hyperbola

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The Definition of a Hyperbola. Connexions

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