It's harder to do when you only have a graph. When you only have a graph, you can only just do it by inspection and say, okay, I can go from that point to that point without picking up my pencil, so I feel pretty good about it. Now let's do another interval. Let's say the, so let me put a check mark here. That is continuous. Let's think about the interval from negative two to positive one, the open interval. So this is interesting, because the function at negative two is up here, and so if you really wanted to start at negative two, you would have to start here, and then jump immediately down as soon as you get slightly larger than negative two, and then keep going, but this is an open interval, so we're not actually concerned with what exactly happens at negative two.