How to find HORIZONTAL ASYMPTOTES (KristaKingMath)

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To find the horizontal asymptotes of a rational function (a fraction in which both the numerator and denominator are polynomials), you want to compare the degree of the numerator and denominator.

If the degree of the numerator is equal to the degree of the denominator, then the horizontal asymptote is given by the ratio of the coefficients on the highest degree terms.

If the degree of the numerator is less than the degree of the denominator, then the horizontal asymptote is the x-axis, or the line y=0.

If the degree of the numerator is greater than the degree of the denominator, then the function has no horizontal asymptote.

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