Posted by **Luke** on Sunday, October 23, 2011 at 1:26pm.

A bridge is designed with cables that connect two towers that rises above a roadway. Each cable is modeled by the function, H(x)=1/9000x2-7/15x+500, where x and h(x) are measured in feet.

a. what is the height above the road of a cable at it's lowest point?

b. Find the distance between towers.

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