2. What is a Grid ?

3. Definition Grid. A pattern of horizontal and vertical lines, usually forming squares.

4. Definition Coordinate grid. A grid used to locate a point by its distances from 2 intersecting straight lines. A B C D E 12345 What are the coordinates for the house?

5. Definition X - Axis. A horizontal number line on a coordinate grid. 1234506 x

6. Hint X is the shortest and likes to lie down horizontally. 1234506 x

7. Definition Y – Axis. A vertical number line on a coordinate grid. 1 2 3 4 5 0 6 y

8. Hint Y is the tallest and stands upright or vertically. 1 2 3 4 5 0 6 y

9. Definition Coordinates. An ordered pair of numbers that give the location of a point on a grid. (3, 4) 1 2 3 4 5 0 6 1234506 (3,4)

10. Hint The first number is always the X or first letter in the alphabet. The second number is always the Y second letter in the alphabet. 1 3 2 4 5 0 6 1234506 (3,4)

11. How to Plot Ordered Pairs Step 1. Always find the X value first, moving horizontally either right (positive) or left (negative). 1 3 2 4 5 0 6 1234506 (2, 3) y x

12. How to Plot Ordered Pairs Step 2. Starting from your new position find the Y value by moving vertically either up (positive) or down (negative). 1 3 2 4 5 0 6 1234506 (2, 3) y x

13. How to Find Ordered Pairs Step 1. Find how far over horizontally the point is by counting to the right (positive) or the left (negative). 1 3 2 4 5 0 6 1234506 (5, ) y x

14. How to Find Ordered Pairs Step 2. Now count how far vertically the point is by counting up (positive) or down (negative). 1 3 2 4 5 0 6 1234506 (5,4) y x

15. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (3,5) y x

16. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (2,6) y x

17. What is the ordered pair? 1 3 2 4 5 0 6 1234506 (4,0) y x

18.  When the number lines are extended into the negative number lines you add 3 more quadrants to the coordinate grid. Four Quadrants of Coordinate Grid

19. -2 0 1 2 -3 3 -2012-33 y x

20. Four Quadrants of Coordinate Grid If the X is negative you move to the left of the 0. -2 0 1 2 -3 3 -2012-33 x = -2 y x

21. Four Quadrants of Coordinate Grid If the Y is negative you move down below the zero. -2 0 1 2 -3 3 -2012-33 y = -3 y x

22. How to Plot in 4 Quadrants Step 1. Plot the X number first moving to the left when the number is negative. -2 0 1 2 -3 3 -2012-33 (-3, -2) y x

23. How to Plot in 4 Quadrants Step 2. - Plot the Y number moving from your new position down 2 when the number is negative. -2 0 1 2 -3 3 -2012-33 (-3, -2) y x

24. How to Plot in 4 Quadrants When X is positive and Y is negative, plot the ordered pair in this manner. -2 0 1 2 -3 3 -2012-33 (2, -2) y x

25. How to Plot in 4 Quadrants When x is negative and y is positive, plot the ordered pair in this manner. -2 0 1 2 -3 3 -2012-33 (-2, 2) y x

26. Credits Microsoct Clipart www.teachnology.com http://www.google.com.pk/images?hl =en&source=imghp&q=maths&gbv= 2&aq=f&aqi=&aql=&oq=&gs_rfaihttp://www.google.com.pk/images?hl =en&source=imghp&q=maths&gbv= 2&aq=f&aqi=&aql=&oq=&gs_rfai=