Section 2.1 Rectangular Coordinates-Relations

A is called the x coordinate of p b is called the y

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Unformatted text preview: of P . b is called the y -coordinate of P . y (−4, 2) 5 4 3 2 1 -5 -4 -3 -2 -1 -1 -2 -3 -4 (−2, −5) -5 (2, 3) 12345 (3, −3) x Outline Relations Graphing Relations The Cartesian Coordinate System A plane with a rectangular coordinate system is called a coordinate plane. A rectangular coordinate system is also called a Cartesian coordinate system after the French mathematician and philosopher Ren´ Descartes (1596–1650). e A coordinate plane is also called a Cartesian plane or the xy -plane. Circles Outline Relations Graphing Relations Coordinates Definition The graph of a relation is the set of ordered pairs (x , y ) in the relation. To graph a relation, we lis...
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