
Rational function - Wikipedia
In mathematics, a rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials.
Rational Function - Graph, Domain, Range, Asymptotes - Cuemath
What is the Definition of a Rational Function? A rational function is a function that looks like a fraction where both the numerator and denominator are polynomials.
Rational Function – Definition, Equations, and Examples
Aug 3, 2023 · Like polynomial functions, a rational function has zeros or roots, the points where the graph crosses the x-axis, or f (x) = 0. In a rational function, they are the zeros of the …
Rational Function Definition (Illustrated Mathematics Dictionary)
Illustrated definition of Rational Function: A function that is the ratio of two polynomials. It is Rational because one is divided by the other, like a...
6.1 Rational Functions - Mathematics LibreTexts
Feb 1, 2025 · Just as a rational number is a ratio of two integers, a rational function is a ratio of two polynomials. That's all there is to it! Stuff like this: () 1, (x) = + + 1 3, (x) = + 2 + + 1
Rational function - Math.net
A rational function is a function made up of a ratio of two polynomials. Rational functions follow the form: In rational functions, P (x) and Q (x) are both polynomials, and Q (x) cannot equal 0. …
Rational Function - from Wolfram MathWorld
Dec 22, 2025 · A quotient of two polynomials P (z) and Q (z), R (z)= (P (z))/ (Q (z)), is called a rational function, or sometimes a rational polynomial function. More generally, if P and Q are …
Rational Function: Definition, Formula, Domain, Graphs
A rational function is a function defined by a rational expression. The key difference is that a rational function represents a relationship between variables, whereas a rational expression is …
Rational functions (video) | Functions | Khan Academy
What are rational functions? How do we plot them? What is their domain and range? Let's find out. We break down the definition of the function given in set-builder form and plot the graph …
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Rational Functions
A rational function is any function that can be written as. where p(x) and q(x) are polynomials and q(x) 6= 0. The domain of f consists of all real numbers x for which q(x) 6= 0. A vertical …