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Rational function

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The rational function $y={\frac {x^{2}-3x-2}{x^{2}-4}}$ . The dotted lines are the asymptotes.

The curve gets closer and closer to touching the asymptote (the red line) but never does.

A rational function is a polynomial divided by a polynomial. $f(x)={\frac {x}{x-3}}$ is a rational function.^[1]

An asymptote is a line that a curve gets closer and closer to touching but never does.

References

[change | change source]

↑ "Rational Functions". dl.uncw.edu. Retrieved March 8, 2018.

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