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31 December, 04:31

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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  1. 31 December, 04:44
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    I think the answer is b but im not sure
  2. 31 December, 04:48
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    It will open to the left

    because the directrix is a vertical line through x=7 and the focus will be on negative side of the x axis
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