A ball is thrown straight up from the top of a building that is 400 ft high with an initial velocity of 64 ft/s. The height of t

Question

3 years ago

8

A ball is thrown straight up from the top of a building that is 400 ft high with an initial velocity of 64 ft/s. The height of t

he object can be modeled by the equation s(t) = -16t^2 + 64t + 400.
In two or more complete sentences explain how to determine the time(s) the ball is higher than the building in interval notation.

Mathematics

1 answer:

Schach [20] · Answer 1 · 2022-05-07T05:27:17+03:00

Answer:

This type of essay answer is pretty short.

You play out the equation and say what each part of the equation means. The vertex in this case, because it's a downward facing parabola, is the highest point on the graph. Now since they're kicking a ball, the vertex will be the highest point that the ball will go up to.

Hopefully this helps some. For full points you'll probably have to add a bit of padding and further explanation.

Step-by-step explanation: