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OpenStudy (anonymous):
Derive the equation of the parabola with a focus at (0, 1) and a directrix of y = -1
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OpenStudy (welshfella):
general form for this is x^2 = 4ay where (0,a) is the focus and directrix y = -a so what do you think your equation is?
OpenStudy (anonymous):
-1/4x^2 ?
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