reminder Rectangular Coordinate System = CARTESIAN Coordinate System reminder Ordered Pair: x-coordinate first y-coordinate second attention 100 50 -13 40 17 40 Origin Where do we go next? Right 1 Left 1 Up 1 Down 1 Up 1 reminder 270 Order matters! How do you plot it? Down 5, Left 2 Left 5, Down 2 Left 5, Down 2 reminder 270 For every point on the y-axis, x=0 reminder 270 For every point on the x-axis, y=0 reminder 300 Remember, an ordered pair corresponds to only one point.