Satellite Dish. An engineer designs a satellitedish with a parabolic cross section. The

Chapter 7, Problem 33

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Satellite Dish. An engineer designs a satellitedish with a parabolic cross section. The dish is15 ft wide at the opening, and the focus is placed4 ft from the vertex. a) Position a coordinate system with the originat the vertex and the x-axis on the parabolasaxis of symmetry and find an equation of theparabola.b) Find the depth of the satellite dish at thevertex.

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