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Math Help - Algebra 2 graphing help

  1. #1
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    Algebra 2 graphing help

    Hey guys, what's up? I know this is going to sound dumb, but I forgot how to do it.

    xy=-3. How would you graph that? Im drawing a blank right now. Thanks for the help!
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  2. #2
    Super Member bigwave's Avatar
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    Quote Originally Posted by robot214 View Post
    Hey guys, what's up? I know this is going to sound dumb, but I forgot how to do it.

    xy=-3. How would you graph that? Im drawing a blank right now. Thanks for the help!
    recall that the form y=\frac{1}{x} is called an equilateral hyperbola

    first rewrite the equation as y=-\frac{3}{x} the - sign will flip the graph and the 3 will expand it.

    here is graph of y=\frac{1}{x} and y = -\frac{3}{x}
    Last edited by bigwave; June 7th 2010 at 04:28 PM. Reason: sign error, spelling
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    Thanks so much!
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