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September 19, 2014

Homework Help: precalculus

Posted by dylan on Friday, May 3, 2013 at 9:00pm.

Find an equation for the parabola that has its vertex at the origin and directrix x=-9.
If your answer is in the form x^2=Ay, then input here: A=
if your answer is in the form y^2=Ax, then input here: A= .

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