Rational function

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The rational function . 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) = 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]

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