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Math Help - Average Rate of Change

  1. #1
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    Average Rate of Change

    Can anyone help with advice on how to complete the following problem?

    Find the average rate of change for g(x) = the square root of (5-x) from x1 = -4 to x2 = 1

    My book has examples, but none of the problems follow this pattern, and I'm very confused!

    Thanks so much.
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  2. #2
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     \frac{g(x_2)-g(x_1)}{x_2-x_1}= \frac{\sqrt{5-x_2}-\sqrt{5-x_1}}{x_2-x_1} = \frac{\sqrt{5-1}-\sqrt{5-(-4)}}{1-(-4)}
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