Okay, so we're dealing with in a lips here where the highest values and the lowest values to the right into the left would be positive and negative. Three in the highest and lowest values, up and down would be negative. Two and positive, too. Notice that the graft doesn't go anywhere to the left of negative three and doesn't go anywhere to the right of positive. Three. Therefore, the domain is X is an element of, and we like to always say that it's actually we know which variable we're talking about. X goes from negative three to positive three. Right? This is interval notation. If you want to use inequality notation, we would say negative three is less than or equal to X, which is less than or equal to three. Either one of these notations would be fine for domain. We talk about range. Why is an element and it goes from negative to on the low end to positive two on the high end again, we could also say that it's negative. Two is less than or equal to why, which is less than or equal to two. The question is whether it's a function or not, And the answer is not a function, and the reason it's not a function is because there are multiple X values that have that have a an output. The definition of a function is each input must have exactly one output, and, for example, it fails right here at one, for example, where one has chewed different outputs does not function.