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What number would go in the blank below? A coordinate graph is a vertical and horizontal number line intersecting at zero, zero for both.
Remember: A horizontal line has positive numbers to the right and negative numbers to the left as below. -4 -3 -2 -1 0 1 2 3 4 Coordinate graphing is handy when describing a location on a plane. The x axis divides the plane into two equal sections on the horizon. The y axis is a vertical division. Where the x and y cross is the origin. The origin is (0,0) as all numbering starts at the origin. The point (0, 0) is also called the . x axis x axis y
a x i s The x axis goes sideways like a xylophone. The y axis goes up and down like a yo yo. the axis the the axis The graph is divided into four sections as below. Since all numbers are positive for both x and y in the upper, right section or quadrant it is called quadrant I. In coordinate graphing we move sideways first so the second quadrant would be the upper, left quadrant. See the Roman Numeral labeling below. II III IV I In coordinate graphing we move sideways first so the second quadrant would be the upper, left quadrant. Label quadrant II, III, and IV. I Remember: Sideways first and up or down second. Points always move sideways first. This point moved three right and two up making the point (3, ) (-4, ) (-2, ) Remember: Sideways first and up or down second. ( , ) ( , ) ( , ) Remember: Sideways first and up or down second. ( , ) ( , ) ( , ) ( , ) Remember: Sideways first and up or down second. ( , ) Click on (2, -1) - - - - - - - - - - - - - - - - - - - - Click on (-2, -1) - - - - - - - - - - - - - - - - - - - - Click on (0,0) - - - - - - - - - - - - - - - - - - - - Remember: Sideways first and up or down second. Click on (1, -2) - - - - - - - - - - - - - - - - - - - - Click on (0,1) - - - - - - - - - - - - - - - - - - - - Click on (0, -1) - - - - - - - - - - - - - - - - - - - - Click on (-1, -2) - - - - - - - - - - - - - - - - - - - - Click on (-2,-2) - - - - - - - - - - - - - - - - - - - - Click on (-2, 1) - - - - - - - - - - - - - - - - - - - - Click on (0, -2) - - - - - - - - - - - - - - - - - - - - |