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Math Help - find the domain of the composite function f*g

  1. #1
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    find the domain of the composite function f*g

    f(x)=4x+4; g(x)=x+5
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  2. #2
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    f[g(x)] = f(x+5) = 4(x+5) + 4

    domain of the composite function looks like the range of g(x).
    Last edited by skeeter; November 24th 2008 at 05:41 PM.
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