Homework: Section 2.4 Homework Score: 0 of 1 pt 2.4.VQ-3 Watch the video and then solve the problem given below Click here to watch the video. 14 of 14 (11 complete)? Find the average rate of change of the function $f(x) = x^2 + 4x$ from $x_1 = 7$ to $x_2=8$ The average rate of change is (Simplify your answer.)
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