Graph of a function

Representation of a mathematical function

In mathematics, the graph of a function f {\displaystyle f} is the set of ordered pairs ( x , y) {\displaystyle (x,y)} , where f ( x) = y . {\displaystyle f(x)=y.} In the common case where x {\displaystyle x} and f ( x) {\displaystyle f(x)} are real numbers, these pairs are Cartesian coordinates of points in a plane and often form a curve. The graphical representation of the graph of a function is also known as a plot.

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