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Piecewise problem

  1. Sep 23, 2009 #1
    1. The problem statement, all variables and given/known data
    h(x)= l x-2 l + l x+5 l


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 23, 2009 #2

    LCKurtz

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    What is your question?
     
  4. Sep 23, 2009 #3

    Office_Shredder

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    I assume he's going to post it in pieces. Hence the name of the thread :)
     
  5. Sep 23, 2009 #4
    ha okay, well I'm just completely lost on how to go about making this a piecewise.
    I've never encountered this before, and I've compared it to others.
    Apparently something just isn't clicking with me.
    any assistance?
     
  6. Sep 23, 2009 #5

    Office_Shredder

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    You mean you want to describe this function piecewise? It's not very clear, since it IS described piecewise right now (one piece).

    You probably want to do something like this:

    I can describe the function g(x)=|x| by the following:
    g(x) = x if x>=0
    g(x) = -x if x<0

    So you need to find where things inside the absolute value sign change signs, and describe h(x) piecewise between those points (hint: they change sign when they're zero)
     
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