1. Unit 1b Terminology of Cartesian Plane Quality Core D.2.f

2. VocabularyVocabulary Coordinate Plane Horizontal number line and a vertical number line intersecting at a point X-axis The horizontal axis in a coordinate system Y-axis The vertical axis in a coordinate system

3. VocabularyVocabularyQuadrant Each of four parts in a plane Coordinates An ordered pair of numbers that locates a point in the coordinate plane with references to the x- and y- axes. Origin The point where the x- and y-axes intersect in a coordinate system.

4. VocabularyVocabularyX-coordinate The first number of an ordered pair of numbers that corresponds to a point in a coordinate system. Y-coordinate The second number of an ordered pair of numbers that corresponds to a point in a coordinate system. Ordered Pairs A pair in which one member is designated as the first and the other member as the second.

5. Review Quadrants

6. Cartesian Plane City  Use the checklist to complete the activity.  Changes to checklist:  Multiply each area by 5.  Increase the road system to 2 units.  On a separate piece of paper or on the back of the page, name the point of each tree you plot. (You must have 20 trees.)  Use the checklist to complete the activity.  Changes to checklist:  Multiply each area by 5.  Increase the road system to 2 units.  On a separate piece of paper or on the back of the page, name the point of each tree you plot. (You must have 20 trees.)

7. Locating Points  Which two points have the same x-coordinate?  Which two points have the same x-coordinate? Point C and Point F Point A and Point G Point B and Point H

8. Absolute Value of Coordinates  Name a point in Quadrant I that has an x-coordinate with the same absolute value as the x-coordinate of point F.

9. Which Quadrants?  Which two quadrants in the Cartesian coordinate plane contain the line below? x + 5 = 0  Which two quadrants in the Cartesian coordinate plane contain the line below? x + 5 = 0 x = -5 II III

10. Which Quadrants?  Which two quadrants in the Cartesian coordinate plane contain the line below? y – 2 = 2  Which two quadrants in the Cartesian coordinate plane contain the line below? y – 2 = 2 y = 2 + 2 y = 4 I II