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22 June, 00:07

For which intervals below is the average rate of change of m (x) = - 5x-3 less than - 25? Interval A 3 ≤ x ≤ 5 B 4 ≤ x ≤ 5 C 4 ≤ x ≤ 6

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  1. 22 June, 03:38
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    The slope is - 5x

    So plug in the numbers from the answers and the correct answer will be the one that gives you an answer less than 25.

    Ex: - 5x (3) = - 15, - 5x (5) = - 25

    This would be an incorrect answer because - 15 is less than 25 and - 25 is equal to 25, not less than.
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