A missile is launched along a path determined by the equation f (x) = -2×2 + 72x, where f (x)

A missile is launched along a path determined by the equation f (x) = -2×2 + 72x, where f (x) is the height of the missile in feet x seconds after the launch. A plane is flying nearby at a height of 650 feet. Is the plane in danger? Why or why not?



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