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Math Help - range and domain

  1. #1
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    Exclamation range and domain

    what do the brackets in the domain and range mean?
    Domain={x | x>-4}
    Range={y | y>-4}
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  2. #2
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    Quote Originally Posted by mackenzie25 View Post
    what do the brackets in the domain and range mean?

    Domain={x | x>-4}
    Domain is the set of values x such that x is greater than -4

    Range={y | y>-4}
    Range is the set of y values such that y is greater than -4
    believe this is called "set-builder" notation, if memory serves me correctly.
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  3. #3
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    Smile

    As Skeeter says the brackets are a set builder in a way, but the brackets are dealing with specific points in which you must list all the variations of the variables in the brackets (X and Y) as the Domain stands for the X axis and
    the Range stands for the Y.
    Hope this helps!
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