How does a domain of a function related to the graph?

The domain of a function refers to the set of all possible input values (x-values) for which the function is defined. On a graph, the domain is represented along the x-axis, indicating the range of x-values for which the corresponding y-values (outputs) exist. Any gaps or restrictions in the domain, such as undefined points or vertical asymptotes, are visually evident in the graph, where certain x-values do not produce valid outputs. Understanding the domain helps to accurately interpret the behavior and limitations of the function represented in the graph.