precalculus
posted by Sara on .
given the following rational function
f(x)= x^2+5x7 / x4
state domain, find vertical, horizontal and oblique asymptotes if any. I found the domain to be (inf.,4)U(4, inf.) and vertical asymptote at x=4 am I right? can someone help me with the rest?

what about the oblique asymptote ?
divide out the right side (I used synthetic division)
f(x) = x + 9 + 29/(x4)
so the oblique asymtote is
y = x+9
see:
http://www.wolframalpha.com/input/?i=%28x%5E2%2B5x7%29%2F%28x4%29 
Reiny:
Thanks for the websites  they have helped immensely.