So notice I did not have to pick up my pencil. I'm including negative three, and I'm getting all the way to negative two. If you knew the analytic definition of this function, you could prove that, hey, the limit at any of these points inside between negative three and negative two is equal to the value of the function. Negative three, the function is clearly, at negative three, the function is just plain old continuous. The two-sided limit approaches the value of the function, but at negative two, the two-sided limit does not exist. When you approach from the left, looks like you're approaching zero, f of x is equal to zero. When you approach from the right, it looks like f of x is approaching negative three.