2.  Grid – A pattern of horizontal and vertical lines, usually forming squares.

3. What are the coordinates for the house? A B C D E 12345 4,B When we are listing coordinates; we always state the horizontal coordinate first.

4. What are the coordinates for the house? 5 4 3 2 1 12345 (4,5) State the horizontal coordinate first, followed by the vertical coordinate

5. What are the coordinates for the house? 5 4 3 2 1 12345 (0,0) This point is also known as the origin

6.  x axis – a horizontal number line on a coordinate grid. 1234506 x

7.  x likes to lie down horizontally. 1234506 x

8.  y axis – a vertical number line on a coordinate grid. 1 2 3 4 5 0 6 y

9.  y likes to stand upright or vertically. 1 2 3 4 5 0 6 y

10.  Coordinates – an ordered pair of numbers that give the location of a point on a grid. 1 2 3 4 5 0 6 1234506 (3,4)

11.  The first number is always the x.x.  The second number is always the y. 1 3 2 4 5 0 6 1234506 (3,4)

12.  Step 1 – Always find the x value first, by moving horizontally 1 3 2 4 5 0 6 1234506 (2, 3)y x

13.  Step 2 – Starting from your new position find the y value by moving vertically 1 3 2 4 5 0 6 1234506 (2, 3) y x

14.  Step 1 – Find how far over horizontally the point is by counting along the x axis 1 3 2 4 5 0 6 1234506 (5, ) y x

15.  Step 2 – Now count how far vertically the point is by counting along the y axis 1 3 2 4 5 0 6 1234506 (5,4) y x

16. 1 3 2 4 5 0 6 1234506 (3,5) y x

17. 1 3 2 4 5 0 6 1234506 (2,6) y x

18. 1 3 2 4 5 0 6 1234506 (4,0) y x

19. 1 3 2 4 5 0 6 1234506 (0,5) y x

20. 1 3 2 4 5 0 6 1234506 (1,1) y x

21.  When number lines are extended into the negative number lines you add 3 more quadrants to the coordinate grid. -2 0 1 2 -3 3 -2012-33 y x

22.  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

23.  If the y is negative you move down below the zero. -2 0 1 2 -3 3 -2012-33 y = -3 y x

24.  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

25.  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

26.  When x is positive and y is negative, plot the coordinate in this manner. -2 0 1 2 -3 3 -2012-33 (2, -2) y x

27.  When x is negative and y is positive, plot the coordinate in this manner. -2 0 1 2 -3 3 -2012-33 (-2, 2) y x

28. -2 0 1 2 -3 3 -2012-33 (-3, -3) y x

29. -2 0 1 2 -3 3 -2012-33 (-1, 2) y x

30. -2 0 1 2 -3 3 -2012-33 (1, -1) y x

31. -2 0 1 2 -3 3 -2012-33 (2, -2) y x

32. -2 0 1 2 -3 3 -2012-33 (-3, -2) y x

33. Ex 12A