Using it's concept, the average rate of change of the function on the interval [6,13] is given by:
[tex]r = \frac{f(13) - f(6)}{7}[/tex]
The average rate of change of a function is given by the change in the output divided by the change in the input. Hence, over an interval [a,b], the rate is given as follows:
[tex]r = \frac{f(b) - f(a)}{b - a}[/tex]
In this problem, we want to find the rate in the interval [6, 13], which is given as follows:
[tex]r = \frac{f(13) - f(6)}{13 - 6} = \frac{f(13) - f(6)}{7}[/tex]
More can be learned about the average rate of change of a function at https://brainly.com/question/24313700
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