1. +1-4 +1 +2 +3 +4 +3+4 +5 +6 +5+7+6 +7 -2-3-6-5-7 -3 -2 -4 -5 -6 -7 0 x y

2. Graphing Ordered Pairs *We can locate a point by using a coordinate system.* The coordinate system is formed when two number lines intersect at their zero points. 0 654321654321 1 2 3 4 5 6 7 Origin Y-axis X-axis

3. Y-axis You have been graphing in the First Quadrant There are actually four quadrants! You can remember the quadrants by drawing a “C” for coordinate graph.

4. +1-4 +1 +2 +2 +3 +4 +3+4 +5 +6 +5-1+7+6 +7 -1 -2-3-6-5-7 -3 -2 -4 -5 -6 -7 0 x y Now that we have learned about positive and negative numbers, we can graph in all four quadrants.

5. Instructions for Graphing in all Four Quadrants Start at zero. Choose a door. (+) Positive – move to the right. (-)Negative – move to the left. Choose a floor. (+) Positive – move up. (-) Negative – move down.

6. Select a door, Choose a floor!

7. +1-4 +1 +2 +3 +4 +3+4 +5 +6 +5+7+6 +7 -2-3-6-5-7 -3 -2 -4 -5 -6 -7 0 x y Let’s graph point A (5,-2)

8. Let’s try graphing Point B(-3,4), Point C(3,7) and Point D(-6,-5) +1-4 +1 +2 +3 +4 +3+4 +5 +6 +5+7+6 +7 -2-3-6-5-7 -3 -2 -4 -5 -6 -7 0 x y

11. It’s your turn! +1-4 +1 +2 +3 +4 +3+4 +5 +6 +5+7+6 +7 -2-3-6-5-7 -3 -2 -4 -5 -6 -7 0 x y Point E (6,- 4) Point F (- 7,- 5) Point G (-5, 6)