The straight line is the oblique asymptote of the function , if the following condition is hold:
On the basis of the condition given above, one can determine the coefficients and of the oblique asymptote of the function :
then
and
Thus the straight line is the oblique asymptote of the function if and only if the finity limits exist
and
To find oblique asymptotes of your function, you can use our free online calculator, based on the Wolfram Alpha system.