We now have a lot of experience taking limits of functions, if I'm taking the limit of f of x, we're gonna think about what does f of x approach as x approaches some value a, and this would be equal to some limit. Now everything we've done up till now is where a is a finite value, but when you look at the graph of the function f right over here, you see something interesting happens. As x gets larger and larger, it looks like our function f is getting closer and closer to two. It looks like we have a horizontal asymptote at y equals two. Similarly, as x gets more and more negative, it also seems like we have a horizontal asymptote at y equals two. So is there some type of notation we can use to think about what is the graph approaching as x gets much larger or as x gets smaller and smaller? And the answer there is limits at infinity.