Cartesian coordinates after the 17th Century French mathematician and philosopher, Rene Descartes
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This is False the correct definition is this: The number lines that form a Cartesian coordinate system are called the axes and the point where they intersect is called the origin.
An XY plane is a standard graphing coordinate plane that can be used to graph any point. It looks like a plus sign with arrows on the ends of the lines.
axis
the y-coordinate is 0.
vertical