The suspension cable that supports a footbridge hangs in the shape of a parabola. The height h, in feet, of the cable above the bridge is given by the function h(x) = 0.24x2 − 0.8x + 15, 0 < x < 3.2 where x is the distance in feet measured from the left tower toward the right tower. What is the minimum height of the cable above the bridge? (Round your answer to two decimal places.)

Intermediate Algebra
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Chapter9: Quadratic Equations And Functions
Section9.6: Graph Quadratic Functions Using Properties
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The suspension cable that supports a footbridge hangs in the shape of a parabola. The height h, in feet, of the cable above the bridge is given by the function

h(x) = 0.24x2 − 0.8x + 15, 0 < x < 3.2

where x is the distance in feet measured from the left tower toward the right tower. What is the minimum height of the cable above the bridge? (Round your answer to two decimal places.)

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