Asked by edel
The cables of a suspension bridge are in the shape of a parabola. The
towers supporting the cables are 600 feet apart and 80 feet high. If the
cables touch the road surface midway between the towers, what is the
equation of the cables?
towers supporting the cables are 600 feet apart and 80 feet high. If the
cables touch the road surface midway between the towers, what is the
equation of the cables?
Answers
Answered by
oobleck
Since the vertex is at (0,0), let the parabola be
y = ax^2
since y(300) = 80, a = 80/300^2
y = ax^2
since y(300) = 80, a = 80/300^2
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