Now we turn our attention to functions that represent the quotient of two polynomials. Whereas the sum, the difference, or the product of two polynomials is a polynomial, in general the quotient of two polynomials is not itself a polynomial.
A rational number can be expressed as the quotient of two integers, , where . A rational function is formed by the quotient of two polynomials, , where . Here are some examples of rational functions and their graphs.
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