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| | Economics Interactive |
 | | Cartesian coordinate: An ordered set of numbers (x,y) that, in two-dimensional graphs, identifies how variables may be related graphically along a horizontal x-axis and a vertical y-axis. |
 | | Cartesian coordinate systems entail two perpendicular lines, or axes, labeled x and y, that usually intersect at their respective zeros—the origin. |
 | | Coordinates for the following points are depicted in Figure 5: (1, 1), (1, 4), (3, 3), (4, 1), (2, 5), (-2, 5), (-3, 3), (-1, 0), (-3, -3), (0, -4), and (3, -3). |
| www.unc.edu /depts/econ/byrns_web/Economicae/Figures/Cartesian.htm (421 words) |
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