Question

Water coming out from a fountain is modeled by the function f(x) = -x2 + 8x + 2 where f(x) represents the height, in feet, of the water from the fountain at different times x, in seconds.
What does the average rate of change of f(x) from x = 1 to x = 4 represent?

The water travels an average distance of 3 ft from 1 sec to 4 sec.

The water travels an average distance of 2 ft from 1 sec to 4 sec.

The water rises up with an average speed of 3 ft per second from 1 sec to 4 sec

The water rises up with an average speed of 2 ft per second from 1 sec to 4 sec

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

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Answer 11

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Answer 12

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Answer 13

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Answer 14

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Answer 16

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