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Math Help - rates of change

  1. #1
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    rates of change

    hi, i need help on how to set up this question

    Determine the average rate of change of the cubic function f(x)= -4x^3 for the intervals, x = 1.5 to x = 2.0
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    Quote Originally Posted by extraordinarymachine View Post
    hi, i need help on how to set up this question

    Determine the average rate of change of the cubic function f(x)= -4x^3 for the intervals, x = 1.5 to x = 2.0
    \frac{f(2) - f(1.5)}{2 - 1.5} = \frac{-4(2)^3 - [-4(1.5)^3]}{.5} = ... finish
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