Using it's concept, it is found that the average rate of change of this function over the interval of time from 30 days to 60 days is of 0.4 insects per day.
[tex]A = \frac{f(b) - f(a)}{b - a}[/tex]
In this problem:
Then:
[tex]A = \frac{32 - 20}{60 - 30} = 0.4[/tex]
The average rate of change of this function over the interval of time from 30 days to 60 days is of 0.4 insects per day.
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