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What do I need to do to solve this hyperbola equation?

I need to find the equation that matches the information but I'm lost. The information I have is that the center is at (0,0), c=6 and e=3, as well as there being a horizontal focus axis.

1 Answer

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  • DWRead
    Lv 7
    8 years ago
    Favorite Answer

    You need to know the orientation of the hyperbola.

    The foci are horizontally aligned, so the hyperbola is horizontal.

    General equation of a HORIZONTAL hyperbola:

     (x - h)²/a² - (y - k)²/b² = 1

    with

     center (h, k)

     c² = a² + b²

     e = c/a

    Match your data to the equation.

    center (h, k) = (0, 0)

    h = 0

    k = 0

    e = c/a

    3 = 6/a

    a = 2

    c² = a² + b²

    6² = 2² + b²

    b² = 32

    The equation becomes

     y²/4 - x²/32 = 1

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