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6.2 G RAPH O RDERED P AIRS
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A GRID a network of lines that cross each other to form a series of squares, creating columns and rows.
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C AN YOU THINK OF A TIME WHEN YOU HAD TO LOCATE A POINT BY MOVING ALONG AND UP A G RID ? Making a graph Finding your city in a map Completing a crossword puzzle
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A coordinate grid has two perpendicular lines, or axes, labeled like number lines. The horizontal axis is called the x-axis. The vertical axis is called the y-axis. The point where the x-axis and y-axis intersect is called the origin. Origin
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C OORDINATE G RID Is a grid used to locate points. Points on a coordinate grid can be given a unique name in the same way each house on a street has a unique number.
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H OW DO YOU THINK YOU CAN NAME A POINT ON A COORDINATE GRID ? The numbers on a coordinate grid are used to locate points. We use an ordered pair to name points on a coordinate grid.
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O RDERED P AIR Each point on a coordinate grid can be identified by an ordered pair of numbers; that is, a number on the x -axis called an x -coordinate, and a number on the y - axis called a y- coordinate. ( 3, 7 ) Why do you think they are called ordered pair?
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C LASS WORK Txt Book Page 121 Q 6 to 12, Q 18 to 23 and Q 28 to 31 Homework: Pg 29 Q 1 to 16, Q 22 to 28 Note: Plot on the grid in PW
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