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Math Help - Range notation

  1. #1
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    Range notation

    Here is what my book says:

    If the range of a function is (–5, 5), this means that –5 is included in the range, but 5 is not. (The range is said to be “inclusive” of –5 but exclusive of 5.)

    Is this true? I've never heard of this before.
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  2. #2
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    Re: Range notation

    Quote Originally Posted by benny92000 View Post
    Here is what my book says:

    If the range of a function is (–5, 5), this means that –5 is included in the range, but 5 is not. (The range is said to be “inclusive” of –5 but exclusive of 5.)

    Is this true? I've never heard of this before.
    Absolutely not.

    Square brackets [] are inclusive, round brackets () are exclusive.

    So if -5 is included and 5 is excluded, then the range is [-5, 5).
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  3. #3
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    Re: Range notation

    Too many typos in this book. Actually, it's not a book, it's a SparkNotes online test for Math level 2 SAT. But thank you.
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