Question

person standing close to the edge on top of a 288-foot building throws a baseball vertically
upward. The quadratic function s(t) = -16t2 + 64t + 288 models the ball's height above the ground,
s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum
height? Round to the nearest tenth of a second if necessary. 13) A)6.7 seconds B)352 seconds C)2 seconds D)1.5 seconds

Answer 1

Ok do you know what the first step is?

How far have you gotten? What are your thoughts on this?

Answer 2

so like a first idea - hope you know that a quadratic has a graph of parabola - and in this case to get the time in second in what the ball reach its maximum height so just you need calcule for what value of ,,t" you get the maxim point for this parabola of the given quadratic

hope helped understandably easy