Question 144519
What is the equation for the asymptote for: R(x)=x^3+1 divided by x^2+1

a) R(x)=x
b) R(x)=x+1
c) x=-1
d) R(x)=-1
------------------
Dividing x^3+1 by x^2+1 you get x + (1-x)/(x^2+1)
----
The remainder goes to zero as x goes to infinity, so 
R(x) goes to x asn x goes to infinity.
Ans: a
============
Cheers,
Stan H.