A ball was kicked into the air from a balcony 20 feet above the ground , and the ball's height above the ground , I'm feet, t seconds after the ball was kicked was h(t)=20-16t^2+32t. What was the maximum height, in feet, of the ball above the ground after it was kicked?

Question

anonymous · Answer

what do you think?

anonymous · Answer

its a vertical motion problem @Luiskaradag

anonymous · Answer

Well I checked on Google, but I reduced it : 20-16t(t-2)

anonymous · Answer

It is a parabola and it opens downward and if you find the vertex you will have the height of the ball

anonymous · Answer

How?

anonymous · Answer

https://www.desmos.com/calculator/yy76fngg45

anonymous · Answer

Great link how to find the vertex https://www.khanacademy.org/math/algebra/quadratics/solving_graphing_quadratics/v/finding-the-vertex-of-a-parabola-example

anonymous · Answer

If you look at that graph and put your mouse at the top of the line, you will see the vertex and the answer is the y value of that point

anonymous · Answer

Make sure you click on the line at the very top

anonymous · Answer

Thanks

anonymous · Answer

YW