What is Rational function?
[[File:RationalDegree2byXedi.svg|thumb|The rational function <math>y=rac{x^2-3x-2}{x^2-4}</math>. The dotted lines are the asymptotes.]] [[File:SlantAsymptoteError.svg|thumb|The curve gets closer and closer to touching the asymptote (the red line) but never does.]] A '''rational function''' is a [[polynomial]] [[Division (mathematics)|divide]]d by a polynomial. <math>f(x)=rac{x}{x-3}</math> is a rational function.<ref>{{cite web|url=http://dl.uncw.edu/digilib/Mathematics/Algebra/mat111hb/PandR/rational/rational.html|website=dl.uncw.edu|access-date=March 8, 2018|title=Rational Functions}}</ref> An '''asymptote''' is a line that a curve gets closer and closer to touching but never does. ==References== {{reflist}} {{math-stub}} [[Category:Algebra]] [[Category:Functions and mappings]]