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Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
Coordinate geometry
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Coordinate geometry

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  • 1. By SADIA ZAREEN
  • 2. Definition Grid – A pattern of horizontal and vertical lines, usually forming squares.
  • 3. Definition Coordinate grid – a grid used to locate a point by its distances from 2 intersecting straight lines. A B What are the C coordinates D for the house? E 1 2 3 4 5
  • 4. Definition x axis – a horizontal number line on a coordinate grid. 0 1 2 3 4 5 6 x
  • 5. Hint x is the shortest and likes to lie down horizontally. 0 1 2 3 4 5 6 x
  • 6. Definition y axis – a vertical number line on a coordinate grid. 6 5 y 4 3 2 1 0
  • 7. Hint y is the tallest and stands upright or vertically. 6 5 y 4 3 2 1 0
  • 8. Definition Coordinates – an ordered pair of numbers that give the location of a point on a grid. (3, 4) 6 5 4 (3,4) 3 2 1 00 1 2 3 4 5 6
  • 9. Hint The first number is always the x or first letter in the alphabet. The second number is always the y the second letter in the alphabet. 6 5 4 (3,4) 3 2 1 00 1 2 3 4 5 6
  • 10. How to Plot Ordered Pairs Step 1 – Always find the x value first, moving horizontally either right (positive) or left (negative). (2, 3) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 11. 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). 6 (2, 3) 5 4 y 3 (2,3) 2 1 00 1 2 3 4 5 6 x
  • 12. 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). (5, ) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 13. How to Find Ordered Pairs Step 2 – Now count how far vertically the point is by counting up (positive) or down (negative). 6 (5,4) 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 14. What is the ordered pair? (2,6) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 15. What is the ordered pair? (4,0) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 16. What is the ordered pair? (0,5) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 17. What is the ordered pair? (1,1) 6 5 4 y 3 2 1 00 1 2 3 4 5 6 x
  • 18. Four Quadrants of Coordinate Grid When the number lines are extended into the negative number lines you add 3 more quadrants to the coordinate grid. 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 19. Four Quadrants of Coordinate Grid If the x is negative you move to the left of the 0. x = -2 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 20. Four Quadrants of Coordinate Grid If the y is negative you move down below the zero. y = -3 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 21. How to Plot in 4 Quadrants Step 1 - Plot the x number first moving to the left when the number is negative. (-3, -2) 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 22. How to Plot in 4 Quadrants Step 2 - Plot the y number moving from your new position down 2 when the number is negative.3 y 2 (-3, -2) 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 23. How to Plot in 4 Quadrants When x is positive and y is negative, plot the ordered pair in this manner. 3 y 2 (2, -2) 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 24. How to Plot in 4 Quadrants When x is negative and y is positive, plot the ordered pair in this manner. 3 y 2 (-2, 2) 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 25. Plot This Ordered Pair (-3, -3) 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 26. Plot This Ordered Pair (-1, 2) y 3 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 27. Plot This Ordered Pair (1, -1) 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 28. Plot This Ordered Pair (2, -2) 3 y 2 1 0 x -1 -2 -3 -3 -2 -1 0 1 2 3
  • 29. Copyright © 2000 by Monica Yuskaitis

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