What term is a graph of isolated points?

A graph of isolated points is typically referred to as a "discrete graph." In such a graph, each point represents an individual data value or a specific coordinate, and there are no continuous connections between them. This contrasts with continuous graphs, where points are connected to form lines or curves. Discrete graphs are often used to represent datasets where values are distinct and separate, such as in certain types of statistical data or functions defined only at specific intervals.