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18 February, 11:12

Find the average rate of change of f (x) = x^2-5x+2 from x=3 to x=8.

Simplify your answer as much as possible.

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  1. 18 February, 12:45
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    Rate of change will be the difference in f (3) and f (8). solve for the 2 first:

    f (3) = 3²-5 (3) + 2 = - 4

    f (8) = 8²-5 (8) + 2 = 26

    than find the difference in f (3) - f (8) = - 4-26 = - 30
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