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Math Help - if f(x)=4-3x, Find K so that [integration problem]

  1. #1
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    if f(x)=4-3x, Find K so that [integration problem]

    Find K so that

    integral of f(t)dt from [-1,x] + K = integral of f(t)dt from [3,x]

    WORK

    K = integral of f(t)dt from [3,x] - f(t)dt from [-1,x]
    K = integral of f(t)dt from [3,x] + f(t)dt from [x,-1]
    K = integral of f(t)dt from [3,-1]

    Anti-derivative = 4x-(3/2)x^2

    4x-(3/2)x^2 from [3,-1]

    = -4


    Let me know if my work is sound.
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  2. #2
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    It looks sound to me.
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