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Math Help - Lost...Please help me solve f(y)=y/y-4

  1. #1
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    Lost...Please help me solve f(y)=y/y-4

    Find all numbers that are NOT in the domain of the function. Then give the domain in set notation



    f (y) = y/y-4

    1) List any numbers that should be EXCLUDED from the domain.
    2) The domain of the function in set notation is {y/__} ????
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  2. #2
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    Quote Originally Posted by HappyFeet View Post
    Find all numbers that are NOT in the domain of the function. Then give the domain in set notation



    f (y) = y/y-4

    1) List any numbers that should be EXCLUDED from the domain.
    2) The domain of the function in set notation is {y/__} ????
    ================================================
    HappyFeet,
    y can be any Real number except y can not be 4, otherwise it would be Undefined.
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