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OpenStudy (anonymous):
Find the standard form of the equation of the parabola with a focus at (0, -2) and a directrix at y = 2.
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OpenStudy (anonymous):
Did you try to draw a diagram?
OpenStudy (anonymous):
yes, but that doesnt necessarily help
OpenStudy (anonymous):
I will help
OpenStudy (anonymous):
|dw:1395879643008:dw|
OpenStudy (anonymous):
Base on that, which way do you think the parabola opens?
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OpenStudy (anonymous):
down
OpenStudy (anonymous):
y^2 = -8x so would this be the answer?
OpenStudy (anonymous):
no, the parabola opens downward (vertically), not horizontally
OpenStudy (anonymous):
it's x^2 = -8y
OpenStudy (anonymous):
thank you!!
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