Posted by **jenny** on Wednesday, May 9, 2012 at 11:07pm.

An auditorium has a curved back wall. A horizontal cross section of the wall is in the shape of a parabola. The wall is 80 feet wide and the vertex of the parabolic cross section is 50 feet from the stage. Where in the auditorium should you sit for the best sound quality? Explain your reasoning and show all work.

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