Golden Gate Bridge Problem: The photograph shows the Golden Gate Bridge across San

Chapter 8, Problem 21

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Golden Gate Bridge Problem: The photograph shows the Golden Gate Bridge across San Francisco Bay in California. The center span of the bridge is about 4200 ft long. The suspension cables hang in parabolic arcs from towers about 750 ft above the waters surface. These cables come as close as 220 ft to the water at the center of the span. Use this information to write an equation of the particular quadratic function that expresses the distance of the cables from the water as a function of the horizontal displacement from center span. Use the equation to calculate the length of the parabol

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