Important Notes on Rational Function

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A rational function equation is of the form f(x) = P(x) / Q(x), where Q(x) ≠ 0.
Every rational function has at least one vertical asymptote.
Every rational function has at most one horizontal asymptote.
Every rational function has at most one slant asymptote.
The excluded values of the domain of a rational function help to identify the VAs.
The excluded values of the range of a rational function help to identify the HAs.
The linear factors that get canceled when a rational function is simplified would give us the holes.

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