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Mathematics 15 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

can't be A

OpenStudy (anonymous):

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?

OpenStudy (anonymous):

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

OpenStudy (anonymous):

if the draw tool was working i could show you let me try again

OpenStudy (anonymous):

|dw:1418790471468:dw|

OpenStudy (anonymous):

since the vertex is above the directrix this opens up

OpenStudy (anonymous):

|dw:1418790576613:dw|

OpenStudy (anonymous):

that means it looks like \[4p(y-k)=(x-h)^2\]

OpenStudy (anonymous):

no it opens up so the x term is squared

OpenStudy (anonymous):

that means it has to be C

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