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I would like to emphasize graphs with holes in Wolfram alpha, so I've tried graphing a rational function with a hole. However, the graph that WA is generating isn't showing the hole. Is there a way to emphasize the hole in WA?

Thanks

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  • $\begingroup$ Umm... If you graph a function without a hole, how can WolframAlpha show you a hole in the graph? $\endgroup$
    – rikusp2002
    Commented May 30, 2019 at 3:58
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    $\begingroup$ Good catch. Sorry, I meant with a hole $\endgroup$ Commented May 30, 2019 at 4:03
  • $\begingroup$ The function I tried graphing is y=(x^2 -1)/(x -1) $\endgroup$ Commented May 30, 2019 at 15:54

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