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December 18, 2014

December 18, 2014

Posted by **Momo** on Friday, January 2, 2009 at 1:42pm.

I believe you start with (x-h)^2 = 4p(y-k) and plug in the given point and (0,0), and solve for p.

I got y^2 = 144x. Is this correct?

Thank you!

- Math -
**Reiny**, Friday, January 2, 2009 at 2:57pmsince the vertex is at the origin and the parabola opens to the left, it would have the simple form

x = -ay^2

plug in (-36,2) to get a = 9

so the equation is x = -9y^2

you should have realized your answer was wrong since the given point does not even satisfy your equation.

Secondly it would open to the right.

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