Question

On which interval is the function decreasing?

A)40 to 44 seconds
B) 56 to 60 seconds
C) 64 to 66 seconds
D) 72 to 76 seconds

Answer 1

`\huge{ \mathfrak{ \underline{ Answer \: \: ✓ }}}`

C.) 64 to 66 seconds

because, the function is decreasing with respect to time between interval 64 to 66 seconds.

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Answer 2

C) 64 to 66 seconds

On the other intervals, the function is increasing, but on this interval, it is decreasing in y value.