Find where the expression is undefined.

Take the limit of each term.

Move the term outside of the limit because it is constant with respect to .

Move the term outside of the limit because it is constant with respect to .

Since its numerator approaches a real number while its denominator is unbounded, the fraction approaches .

Multiply by .

List the horizontal asymptotes:

There is no oblique asymptote because the degree of the numerator is less than or equal to the degree of the denominator.

No Oblique Asymptotes

This is the set of all asymptotes.

Vertical Asymptotes:

Horizontal Asymptotes:

No Oblique Asymptotes

Graph (-3a^-5)(5a^-7)