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OpenStudy (anonymous):
Find the standard form of the equation of a parabola with the vertex (-1,2), focus (-1,0)
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OpenStudy (irishboy123):
|dw:1428056542760:dw| Every (x,y) point on the parabola is at an equal distance from the focus, and the the directrix line. In this case the directrix must be y = 4. Use Pythagoreas to create an equation and simplify.
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