Finding the average rate of change of a function
How do find the average rate of change of a function from x=a to x=b? In this precalculus tutorial, I will show you the formula for the average rate of change and give you two worked-out examples.
0:00 The formula for the average rate of change of f(x) from x=a to x=b
0:27 Find the average rate of change of f(x)=x^2-8x from x=2 to x=8
2:20 Find the average rate of change of f(x)=sqrt(x+7) from x=-3 to x=18
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