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Curve sketching

  1. Feb 4, 2013 #1
    I need to sketch the curve (1/x2) - 1

    Is this correct?


    Excuse the untidiness this was drawn in paint. :S

    I know the y axis is an asymptote to the function, I haven't sketch a graph like this before so I'm kind of confused.
  2. jcsd
  3. Feb 4, 2013 #2


    Staff: Mentor

    when x=1 then what is y? do you see that point on your graph?

    similarly for x=-1

    try generating several points at x=2,3,4... and plot them
  4. Feb 4, 2013 #3
    oh.. sigh I see a part if below the x axis now thanks.
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