1. ## Finding horizontal asymptote.

How do you find the horizontal asymptote of:

13x/(x+18)

I believe the vertical asymptote is -18, because -18 + 18 = 0

2. since the degree is the same with the numerator and denominator, you divide the leading coefficients. 13/1 = 13

3. $\frac{13x}{x+18} = 13-\frac{234}{x+18}$

4. By the way, the vertical asymptote is the vertical line y= -18, not just the number "-18".