Asymptotes of function

1. Jan 24, 2009

Dell

if i am given a function y=f(x) for example,

f(x)=[tex]\frac{x3/SUP]{x2/SUP]-1tex]

and i am asked to find all asymptotes, i find

vertical asymptotes : x=1 x=-1

slant asymptote: y=x

am i expected to write y=infinity as well since

Lim
x->inf = infinity

or is this just understood since i do not have another horizontalasymptote

2. Jan 24, 2009

Staff: Mentor

I fixed up your LaTeX tags. I think this is what you meant.
Everything looks fine. I wouldn't expect that you'd need to add that f(x) is unbounded for large or very negative x.

3. Jan 24, 2009

Dell

thanks, thats exactly it, not that it really matters, more of a general question than this specific case