Finding the average rate of change of a function

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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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This channel is dedicated to students who are taking precalculus, AP calculus, GCSE, A-Level, year 12 maths, college calculus, or high school calculus. Feel free to leave calculus questions in the comment section and subscribe for future videos.

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you taught me in 2.5 minutes what I haven't been able to grasp ALL WEEK. thank you so much. I'm off to practice and master the technique now

hellaluigi
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Hello teacher😁😁

Pls make video on differentiation ie power rule and all....
I would appreciate if u do so as I love ur explanation 💗💗

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