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anonymous
 one year ago
Derive the equation of the parabola with a focus at (4, −7) and a directrix of y = −15. Put the equation in standard form.
anonymous
 one year ago
Derive the equation of the parabola with a focus at (4, −7) and a directrix of y = −15. Put the equation in standard form.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did you try to make a sketch?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes. I would show u but I can't draw on here, I'm bad at it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434930834277:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Can you tell the coordinate of the vertex?
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