How to find the vertical & horizontal asymptotes of a rational function? (4 examples)

Опубликовано: 06 Март 2026
на канале: bprp calculus basics

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How do we find the vertical asymptotes and horizontal asymptotes of rational functions? Remember for a vertical asymptote of a rational function, we must set the denominator equal to 0 after we have reduced the rational function (but if the question is asking for the domain of a rational function, then we must set the denominator equal to 0 in the original rational function). For the horizontal asymptotes of rational functions, just compare the highest power of x on the numerator and the highest power of the denominator.

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