SOLUTION: The function f gives the height of a ball ,h, above the ground (measured in feet) in terms of the number of seconds elapsed since the ball was thrown upward from a bridge that is s

Algebra ->  Functions -> SOLUTION: The function f gives the height of a ball ,h, above the ground (measured in feet) in terms of the number of seconds elapsed since the ball was thrown upward from a bridge that is s      Log On


   



Question 995259: The function f gives the height of a ball ,h, above the ground (measured in feet) in terms of the number of seconds elapsed since the ball was thrown upward from a bridge that is some distance above the ground, t. Let h=f(t) and f(t)=−16t^2+29t+285 .


After how many seconds does the ball reach its maximum height above the ground?
Thanks in advance!

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
h=f(t) and f(t)=-16t^2+29t+285 .
After how many seconds does the ball reach its maximum height above the ground?
-------------
At the vertex of the parabola, at t = -b/2a
t = -29/-32
t = 29/32 seconds