The following are the guidelines for finding limits at infinity of rational functions.

1. Ifthe degree of the numeratoris less than the degree of the denominator, the the limit at infinity is 0

2. If the degree of the numerator is greater than the degree of the denominator, the the limit at infinity does not exist

3, Ifthe degree of the numeratoris equal tothe degreeof the denominator, the limit is equal to the ratio of the leading coefficients.

1. Ifthe degree of the numeratoris less than the degree of the denominator, the the limit at infinity is 0

2. If the degree of the numerator is greater than the degree of the denominator, the the limit at infinity does not exist

3, Ifthe degree of the numeratoris equal tothe degreeof the denominator, the limit is equal to the ratio of the leading coefficients.