Post_section8o3_1330

Post_section8o3_1330 - Section 8.3 Hyperbolas A hyperbola...

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Section 8.3 – Hyperbolas 1 Section 8.3 Hyperbolas A hyperbola is the set of all points, the difference of whose distances from two fixed points is constant. Each fixed point is called a focus (plural = foci ). The focal axis is the line passing through the foci. Basic “Vertical” Hyperbola : Equation: 2 2 2 2 1 y x a b - = Asymptotes: a y x b = ± Foci: (0, ) c ± , where 2 2 2 c a b = + Vertices: (0, ) a ± Eccentricity: c e a = Basic “Horizontal” Hyperbola: Equation: 2 2 2 2 1 x y a b - = Asymptotes: b y x a = ± Foci: ( ,0) c ± , where 2 2 2 c a b = + Vertices: ( ,0) a ± Eccentricity: c e a = The transverse axis (length 2a) is the line segment joining the two vertices. The conjugate axis (length 2b) is the line segment perpendicular to the transverse axis, passing through the center and extending a distance b on either side of the center. a -a (0, ) c a y x b = a y x b = - (0, ) c - a ( ,0) c b y x a = b y x a = - ( ,0) c -a
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Section 8.3 – Hyperbolas 2 Graphing Hyperbolas: To graph a hyperbola with center at the origin
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This note was uploaded on 02/20/2012 for the course MATH 1330 taught by Professor Staff during the Fall '08 term at University of Houston.

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Post_section8o3_1330 - Section 8.3 Hyperbolas A hyperbola...

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