By Deb Russell

The Cartesian plane is named after the mathematician Rene Descartes. When 2 perpindicular number lines intersect, a Cartesian Plane is formed. Points on the cartesian plane are called 'ordered pairs'.

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- Cartesian Plane (See Next for Ordering Pairs)
- More on the Cartesian Plane
- Cartesian Plane and Ordered Pairs
- Ordered Pairs and Locating Points

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