no idea what time, but the distance x will be -b/2a = -1/-.014 = 71.4 ft
extra credit: given f(x) with x in feet, what is f(t), with t in seconds? recall that x(t) = v cosθ where θ is the angle of takeoff.
The path of a baseball after being hit is given by the function f(x)= -.007x^2+x+4 where f(x) is the height of the baseball (in feet) and x is the horizontal distance from home plate (in feet). at what time will the baseball reach the maximum height?
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