Question

(x^2+2x)/(x^3-9x) vertical asymptotes:
y=3 and -3
or
x=3 and -3
http://www.wolframalpha.com/input/?i=%28x%5E2%2B2x%29%2F%28x%5E3-9x%29+vertical+asymptote

Answer 1

Clarify that the answer is y=3 and -3??

Answer 2

The answer would be x= -3 and 3

Answer 3

Thank you :)

Answer 4

If
This would be undefined.