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  • one year ago

Highway Design In order to build a highway, it is necessary to fill a section of a valley where the grades (slopes) of the sides are 9% and 6% (see figure). The top of the filled region will have the shape of a parabolic arc that is tangent to the two slopes at the points and The horizontal distances from to the -axis and from to the -axis are both 500 feet. (a) Find the coordinates of and (b) Find a quadratic function for that describes the top of the filled region.

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  1. mathmate
    • one year ago
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    It looks like some information is missing in the question, and a diagram too. "...The horizontal distances from to the ?-axis and from ? to the ?-axis are both 500 feet." and "(a) Find the coordinates of ? and..."

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