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OpenStudy (ray1998):
Please help. Will give fan and medal! A cross section of a light reflector is a parabola. The bulb is located at the focus. Suppose the bulb is located 4in from the vertex of the reflector. Use this information to make the following determinations. Model a cross section of the relfector by writing an equation of a parabola that opens upward and has its vertex at the origin. ___ = ___ Thank you in advance!
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