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23 February, 20:13

Write an equation of a parabola with a vertex at the origin and a directrix at y=5

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  1. 23 February, 22:21
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    The standard form is, where the focus is (h, k + p)

    vertex at the origin and a directrix at y = 5. p = - 5 (focus is (0,-5)

    x^2 = - 20y OR y = (-1/20) x^2
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