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 the object ca

Question

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 the 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.

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Nho 3 years 2021-09-05T15:25:56+00:00 1 Answers 172 views 0

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  1. haidang
    -1
    2021-09-05T15:27:19+00:00
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    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:

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