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OpenStudy (anonymous):
Find the standard form of the equation of the parabola with a focus at (3, 0) and a directrix at x = -3
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OpenStudy (amistre64):
what ahve you been able to process so far?
OpenStudy (amistre64):
|dw:1377450155220:dw|
OpenStudy (amistre64):
looks to be a x = ay^2 format, and i can never really recall the parabolic equations :) so I just equate: x = ay^2 , with y = 2x, when x=3 3 = a(2*3)^2 a = 3/36
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