Very simply, what is an asymptote?

Question

If given a graph, how would you go about locating the asymptote?

Thanks.

Answer 1

http://www.merriam-webster.com/dictionary/asymptote

Asymptotes are often approached when a value of x in the equation y = f(x) approaches + or - infinity, or at a singularity of the function (where a denominator becomes zero).