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Find an equation of a parabola with a vertex at the origin and directrix y = -4

Find an equation of a parabola with a vertex at the origin and directrix y = -4
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Find an equation of a parabola with a vertex at the origin and directrix y = -4

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User Runner Bean
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1 Answer

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y=1/16x^2. This is the answer because you find the focus using the equation y=1/4px^2 and the directrix is opposite the focus

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User Benefactual
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