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(of a function or mapping)

For a real function f, the graph of f is the set of all pairs (x, y) in R×R such that y=f(x) and x is in the domain of the function. For many real functions of interest, this gives a set of points that form a curve of some sort, possibly in a number of parts, that can be drawn in the plane. Such a curve defined by y=f(x) is also called the graph of f. See also mapping.

Subjects: Mathematics.

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