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OpenStudy (jkbo):
PLEASE HELP write the equation of each parabola with its vertex at the origin directrix at y= -8
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OpenStudy (mertsj):
If the directrix is y = -8 and the vertex is (0,0) then p = 8 x^2=4py Use that.
OpenStudy (jkbo):
I still dont undersatand @Mertsj
OpenStudy (mertsj):
Ummmmmm how about you replace p with 8???? Is that too tough?
OpenStudy (jkbo):
so it would be x^2 = 4(8) right?
OpenStudy (mertsj):
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