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can't be A
first off, i can't imagine doing this without knowing what it looks like first i.e. open left, right, up or down do you know which?
yeah i know what i mean is you need to figure it out first plot the directrix and the focus and you will see it
if the draw tool was working i could show you let me try again
|dw:1418790471468:dw|
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since the vertex is above the directrix this opens up
|dw:1418790576613:dw|
that means it looks like \[4p(y-k)=(x-h)^2\]
no it opens up so the x term is squared
that means it has to be C
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