When the power of the leading coefficient of the numerator of a rational function is a lot greater than the power of the leading coefficient of the denominator , ie(adsbygoogle = window.adsbygoogle || []).push({});

[tex]f(x)=\frac{x^3+1}{x-1}[/tex]

The horizontal asymtote is y=x^2 according to the book . Is that true ? Is there any proof for this . I only know when its one power difference , that would be oblique asymtote .

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# Homework Help: Horizontal asymtotes

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