Answer
-0.25
Work Step by Step
Given the interval [1,4]
f(4)=$\frac{1}{4}$=0.25
f(1)=$\frac{1}{1}$=1
The average rate of change of f(x) over the interval [1,4]
$\frac{f(4)−f(1)}{4−1}=\frac{0.25-1}{3}=-0.25$
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