Question 1177358
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The height of the ball when it hits the ground is quite obviously zero.  So set your function equal to zero and solve for *[tex \Large d].  Note: Since this function is quadratic, you will get two roots.  Since the quadratic has no constant term, one of the roots will be zero.  Consider how you should interpret a zero root in the context of this problem.  If you get a different answer when you solve by factoring than when you solve using the quadratic formula, check your arithmetic because you most certainly made an arithmetic error somewhere.


																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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