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Answer 1 · 2016-09-29T03:05:18

The average rate of change is 2.

$y=x^2-x+1$

To find the average rate of change of the function in the interval $[0,3]$ , use the formula

$A(x)=frac{f(x)-f(a)}{x-a}$

$A(x)=frac{f(3)-f(0)}{3-0}$

$A(x)=frac{(3^2-3+1)-(0^2-0+1)}{3}$

$A(x)=(7-1)/3$

$A(x)=6/3=2$