Each point on a plane is located by a unique ordered pair of numbers called the coordinates

Each point on a plane is located by a unique ordered pair of numbers called the coordinates

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Each point on a plane is located by a unique  ordered pair  of numbers called the  coordinates.  Some  coordinates are noted in Figure 2.  Figure 2. Graphing or plotting coordinates. Notice that on the  x -axis numbers to the right of 0 are positive and to the left of 0 are negative. On  the  y -axis, numbers above 0 are positive and below 0 are negative. Also, note that the first number in 
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Unformatted text preview: the ordered pair is called the x-coordinate, or abscissa, and the second number is the y-coordinate, or ordinate. The x-coordinate shows the right or left direction, and the y-coordinate shows the up or down direction....
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