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24 November, 12:05

A rock was dropped from the top of a building. The function that describes the height after it was dropped is f (x) = 64-16x^2. What are the zeros of the function and what do they mean?

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  1. 24 November, 12:29
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    Step-by-step explanation:

    f (x) = height = 64 - 16x^2 = 0.

    16x^2 = 64

    x^2 = 4

    x = 2, - 2.

    The zero x = 2 means that the height after time 2 is 0. This corresponds to the time of the rock hitting the ground.

    The - 2 can be ignored.
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