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Hi Jennifer, I drew a rough diagram (not so scale), put some dimensions on it and a coordinate system in red. The origin is at the road surface directly below the lowest point on the cable so the equation of the parabola is When x = 0 what is the value of y? What is the value of b? What are the coordinates of the point P? Substitute into the equation. What is the value of a? Now that you know the equation of the parabola you should be able to complete the problem. Penny | ||||||||||||
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