Asked by Maria F.
a shark jumps out the water. Yhe function f(x)=-16x^2+21x models the shark's height, in feet, above the water after x seconds. How longis teh shark out of the water
Answers
Answered by
Scott
the peak of the jump lies on the axis of symmetry of the parabola
... x = -b / 2a = -21 / (2 * -16)
time up equals time down
time of flight (jump) = 2 * 21/32
... x = -b / 2a = -21 / (2 * -16)
time up equals time down
time of flight (jump) = 2 * 21/32
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