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Math Help - Find the Range

  1. #1
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    Find the Range

    Find the range of f(x) = x + 4 for the domain
    {3, 2, 1, 1}.

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  2. #2
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    Quote Originally Posted by magentarita View Post
    Find the range of f(x) = x + 4 for the domain
    {3, 2, 1, 1}.
    Hi magentarita,

    Simply substitute each value you have for the domain and find f(x) which is your range.

    f(x)=-x+4

    f(-3)=-(-3)+4

    f(-3)=3+4

    f(-3)=7

    Like that....
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  3. #3
    Moo
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    Quote Originally Posted by magentarita View Post
    Find the range of f(x) = –x + 4 for the domain
    {–3, –2, –1, 1}.

    The range is all the values the function can have.
    In other words, the range will be {f(-3),f(-2),f(-1),f(1)}
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  4. #4
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    ok...

    Quote Originally Posted by masters View Post
    Hi magentarita,

    Simply substitute each value you have for the domain and find f(x) which is your range.

    f(x)=-x+4

    f(-3)=-(-3)+4

    f(-3)=3+4

    f(-3)=7

    Like that....

    That's easy enough. Thanks!
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  5. #5
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    ok..

    Quote Originally Posted by Moo View Post
    The range is all the values the function can have.
    In other words, the range will be {f(-3),f(-2),f(-1),f(1)}
    I like your reply as well.
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