And so let's look at this function, which is a pretty neat function. I made it up right before this video started, but it's kind of cool looking. So let's think about the behavior as x approaches infinity. So as x approaches infinity, it looks like our y value or the value of the expression, if we said y is equal to that expression, it looks like it's getting closer and closer and closer to three. And so we could say that we have a horizontal asymptote at y is equal to three. And we could also, and there's a more rigorous way of defining it, say that our limit as x approaches infinity is equal of the expression or of the function is equal to three. Notice my mouse is covering it a little bit.