Suppose f(x)=x^2+6x+1 What is the average rate of change

Suppose f(x)=x^2+6x+2 
What is the average rate of change of f(x) with respect to x as x changes from -1 to 1?

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1 Answer

Rate of change is f'(x)=2x+6. f(-1)=4 and f(1)=8.

Average rate of change is (4+8)/2=6.
by Top Rated User (1.2m points)

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