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find the average rate of change from 1 to x

Find the average rate of change from 1 to 3

Using f(x) = -2x^2+6x

  • Math -

    F(x) = -2x^2 + 6x.

    F(1) = -2*1^2 + 6*1 = -2 + 6 = 4.
    F(3) = -2*3^2 + 6*3 = -18 + 18 = 0.

    F(3)-F(1) = 0 - 4 = -4 = Average rate of change.

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