So does not exist, which is interesting. In this first case, the function is defined at six, and the limit is equal to the value of the function at x equals six. Here, the function was not defined at x equals four, but the limit does exist. Here, the function is defined at x equals two, but the limit does not exist as we approach x equals two. Let's do another function, just to get more cases of looking at graphical limits. So here, we have the graph of y is equal to g of x. And once again, pause this video and have a go at it.