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Math Help - graph for x-[x]

  1. #1
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    graph for x-[x]

    Sir,

    The question I received was draw the graph for x-[x] and find the domain and range.

    I drew the graph such that a slanting line below x axis each unit such as -1 to 1, -1 to 2, etc. [in y axis].

    The domain is R and range is [-1,0].

    I do not know rather I am not sure whether my answer is correct.

    kindly enlighten me.

    Thanks.

    with warm regards,

    Aranga
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  2. #2
    MHF Contributor

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    Re: graph for x-[x]

    Quote Originally Posted by arangu1508 View Post
    SThe question I received was draw the graph for x-[x] and find the domain and range.
    I drew the graph such that a slanting line below x axis each unit such as -1 to 1, -1 to 2, etc. [in y axis]. NO

    The domain is R and range is [-1,0]. NO
    Here is the graph.

    As you can see the range is [0,1). Note that 1\notin [0,1).

    You can read about the Fractional part here..
    Thanks from arangu1508 and topsquark
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  3. #3
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    Re: graph for x-[x]

    Thanks. Very useful.
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