ok so in the problem f(x)= x + 9/x, I know how to write where f is increasing, but how do you write how it's decreasing? Is it written as [-3,0)U(0,3]? since x=0 is a vertical asymptote wouldn't all the x-values between -3 and 3 be as close to 0 as possible?(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Quick Local Max/Min Question.

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