SOLUTION: a concrete bridge is designed with an arch in the shape of the parabola. The road over the bridge is 120 feet long and the maximum height of the arc is 50 feet. Write the equation

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: a concrete bridge is designed with an arch in the shape of the parabola. The road over the bridge is 120 feet long and the maximum height of the arc is 50 feet. Write the equation       Log On


   

Question 1119176: a concrete bridge is designed with an arch in the shape of the parabola. The road over the bridge is 120 feet long and the maximum height of the arc is 50 feet. Write the equation for the parabolic arch?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39616) About Me  (Show Source):
Answer by MathTherapy(10551) About Me  (Show Source):
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a concrete bridge is designed with an arch in the shape of the parabola. The road over the bridge is 120 feet long and the maximum height of the arc is 50 feet. Write the equation for the parabolic arch?
The equation is NOT highlight%28cross%28y=%281%2F72%29x%28x-120%29%29%29 and NOT cross%28y=-%281%2F72%29%28x-60%29%5E2%29 either.