Question
Prove that the average rate of change of the linear function $f(x)=-2 x+4$ on any interval $I$ is always equal to $-2$.
Step 1
The average rate of change of a function $f(x)$ over the interval $[a, b]$ is given by the formula: \[ \frac{f(b) - f(a)}{b - a} \] Show more…
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