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OpenStudy (dix123):
Can someone help me write an equation for a parabola using a focus and directrix? Medal and follow.
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OpenStudy (dix123):
someone plssssss help
OpenStudy (welshfella):
http://hotmath.com/hotmath_help/topics/finding-the-equation-of-a-parabola-given-focus-and-directrix.html this should help
OpenStudy (dix123):
thanks
OpenStudy (welshfella):
yw a simple one worth remembering is the parabola y^2 = 4ax where the focus is at (a,0) and directrix is x = -a
OpenStudy (welshfella):
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