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OpenStudy (anonymous):
A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward.
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OpenStudy (dumbcow):
use the general equation \[y = \frac{1}{4p}x^2\] where p is distance between focus and vertex p = 2
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