Plot points are a type of DATA used in mapping and graphing. They are a set of two-dimensional coordinates that represent a specific location on a graph or map. Plot points are used to create visual representations of DATA, such as graphs, charts, and maps. They can also be used to represent the locations of physical objects, such as buildings, roads, and rivers. The term 'plot points' is derived from the fact that they are used to plot points on a graph or map.