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Math Help - graphs absolute

  1. #1
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    graphs absolute

    Say you have f(x) = x


    so it looks like this /


    if you do f(|x|)... will it make it look like V or <


    THANKS
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  2. #2
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    Quote Originally Posted by Mr_Green View Post
    Say you have f(x) = x


    so it looks like this /


    if you do f(|x|)... will it make it look like V or <


    THANKS
    V.
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  3. #3
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    IT cannot look like <
    Because otherwise it is not a function (vertical line test).
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  4. #4
    Junior Member Ruichan's Avatar
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    Just reflect all the -xs about the x axis and you'll get V
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  5. #5
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by Mr_Green View Post
    Say you have f(x) = x


    so it looks like this /


    if you do f(|x|)... will it make it look like V or <


    THANKS
    Here's the graph.

    -Dan
    Attached Thumbnails Attached Thumbnails graphs absolute-absolute-value.jpg  
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  6. #6
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    Hello, Mr_Green!

    Say you have f(x) = x

    so it looks like this: /

    If you do f(|x|) . . . will it make it look like \lor or < ?

    Since we have f(x) = |x|, the graph is symmetric to the y-axis: . \lor
    Baby-talk: "Anything that happens on the right will also happen on the left"

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