Recall that the domain is the set of all possible x-values and the range is the set of all the possible y-values.
Domain: All real numbers. Range: All integers
Practice makes perfect
When determining the domain and range from a graph, we need to notice the shape of the graph. Recall that the domain is the set of all possible x-values and the range is the set of all the possible y-values. Let's look at the graph.
The x -values on the graph continue in both direction. Since there are not restrictions, the domain is all real numbers. This step function shows the y -values as all integers.