The main cable of a suspension bridge forms a parabola, described by the equation
y = a(x...
Mathematics, 22.05.2020 20:08 codycollier
The main cable of a suspension bridge forms a parabola, described by the equation
y = a(x - h)2 + k, where y is the height in feet of the cable above the roadway, x is the horizontal distance in feet from the left bridge support, a is a constant, and (h, k) is the vertex of the parabola.
At a horizontal distance of 30 ft, the cable is 15 ft above the roadway. The lowest point of the cable is 6ft above the roadway and is a horizontal distance of 90 ft from the left bridge support.
Which quadratic equation models the situation correctly?
ANSWER;C
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