Two-dimensional graph: Difference between revisions

Revision as of 17:22, 14 January 2016

Revision as of 17:43, 14 January 2016

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{{see also|Binary relation}}

In some cases athe polynomialrelation inbetween two real variables cannot be rewrittenwritten in the form <math>y=f(x)</math>. In other words, it is not a function. Nevertheless, the set of all points satisfyinggiven by the equationrelation canis still be plotted as a two-dimensional graph, as in the accompanying graph of the circle <math>(x-a)^2+(y-b)^2=1.</math>

An [[image (mathematics)|image]] of a [[plane curve]] is a also two-dimensional graph, although only some two-dimensional graphs are an image of any plane curve.