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OpenStudy (anonymous):
Given a parabola with the vertex at the origin and the directrix at x=7 determine the direction the parabola opens. A. down B. left C. right D. up
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OpenStudy (anonymous):
i picked A
OpenStudy (anonymous):
@angel12310
OpenStudy (anonymous):
|dw:1387299690621:dw| answer should be B. left
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