1. Warm Up

2. Two-Variable Data – 1.6

3. Definitions One-variable data : A data set that measures only one trait. Ex: Age Two-Variable Data: Measures two traits, often trying to see the relationship. Ex: Age and Height.

4. Coordinate Plane Quadrant IQuadrant II Quadrant III Quadrant IV

5. (x,y) Called an “ordered pair” X is ALWAYS first! X is the horizontal distance from (0,0) and y is the vertical distance from (0,0). (0,0) is called the orgin

6. Quadrant IQuadrant II Quadrant III Quadrant IV Origin

7. Example 1 Plot the points, and label with its corresponding letter. A(1,3) B(-4,2) C(-3,-1) D(4,-2)

8. Rule (+,+) (-,+) (-,-)(+,-)

9. Example 2 Name the Quadrant location of the following points (1,3) (10, -21) (-42,-34) (-5,6)

10. Example 3 What if the point has a 0? (1,0) Or (0,1)

11. Homework 1.6 All problems