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Homework Help: How to describe this Picture in words.

  1. Aug 23, 2009 #1
    1. The problem statement, all variables and given/known data
    I have this solution as domain of f,wheref(x,y)=1/(x+y2)

    Please describe this picture in words for me....PLZ

    2. Relevant equations

    3. The attempt at a solution
    I can't figure it out..

    Attached Files:

    • sol.PNG
      File size:
      1.1 KB
  2. jcsd
  3. Aug 23, 2009 #2
    Your parabola has equation x=ay2+by+c

    I can describe it as parabola with horizontal axis of symmetry and vertex (b/2a)=0, so b=0

    Also, c=0 because the graph isn't shifted left or right.

    and your equation would look like x=ay2

  4. Aug 23, 2009 #3


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    Science Advisor
    Homework Helper

    It's a graph of the domain of f(x,y)=1/(x+y^2). The function is defined everywhere except where the denominator vanishes, x+y^2=0. The dashed line marks that curve of points that are NOT in the domain.
  5. Aug 23, 2009 #4


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    Staff Emeritus
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    You guys are such mathematicians. Describe the picture in words.
  6. Aug 23, 2009 #5
    Thanks for your help...
  7. Aug 23, 2009 #6
    Also Thanks to you...
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