How to find the vertical asymptote of a logarithmic function?

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Roy Mcclain · Accepted Answer

f              (        x        )              =                  log        b                    (                  argument                )             has vertical aymptotes at             argument        =    0  Example             f              (        x        )              =          ln              (                  x          2                -        3        x        -        4        )              .   has asymptotes in the vertical      x    =    4   and       x    =    -    1  graph{y=ln(x^2-3x-4) [-5.18, 8.87, -4.09, 2.934]}Example             f              (        x        )              =          ln              (                  1          x                )             has vertical asymptote      x    =    0  graph{ln(1/x) [-5.18, 8.87, -4.09, 2.934]} Example             f              (        x        )              =          ln              (                  1                      x            2                          )              alsohas vertical asymptote      x    =    0  graph{ln(1/x^2) [-5.18, 8.87, -4.09, 2.934]}

How to find the vertical asymptote of a logarithmic function?

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