There's always been some confusion and lack of clear agreement about what term to use to describe figures that depict the set of points corresponding to a function or relation. Is it a "graph", a "plot", a "figure" — or something else? Given the range of functions Mathematica provides for generating these, whatever they're called, and given the versatility of these functions in generating many related (and not so related) graphics that are not strictly mathematical functions or relations, what tag or tags should we use to identify posts discussing them?
Some possibilities include:
FWIW, Math.SE uses graph for "questions regarding graphs of functions"; Stack Overlfow uses plot for "a graphical technique for presenting a data set or a equation" but graph for "a graphic (such as a chart or diagram) showing or displaying the relationship between two or more variables".