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2 May, 20:49

What is an equation of a parabola with the given vertex and focus? vertex: (5, 4); focus: (8, 4)

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  1. 2 May, 23:44
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    The parabola is opens upward.

    a = (8 - 5)

    = 3

    Using the standard form:

    (x - h) ^2 = 4a (y - k)

    (x - 5) ^2 = 12 (y - 4)

    In general form

    x^2 - 10x + 25 = 12y - 48

    x^2 - 10x - 12y + 73 = 0
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