pre cal

f(x)= log2 (x-1).The vertical asymptote of the function f(x) has equation:?

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  1. found it! :)

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  2. You should know that we can only take logs of positive numbers, so
    x-1 > 0
    x > 1

    so the vertical asymptote is x = 1

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  3. thx!

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