Coordinates

Definition of Coordinates

In a two-dimensional coordinate plane, Coordinates are the pairs of numbers which specify the position or location of a point or of an object.

More About Coordinates

  • Coordinates are represented by putting the ordered pairs in parentheses. For example: (x, y).
  • X-coordinate is the first number in an ordered pair and represents the horizontal position of an object in the coordinate plane.
  • Y-coordinate is the second number in an ordered pair and represents the vertical position of an object in the coordinate plane.

Video Examples: Graph on a Coordinate Plane


Example of Coordinates

      EXAMPLE OF Converging Lines
    The point P is eight units to the left of the Y-axis (negative direction) and is eight units below the X-axis (negative direction). So the coordinates of point P is (- 8, - 8).

Solved Example on Coordinates

Ques: Identify the coordinates of the point C from the graph.

    example of  Coordinates
    Choices:
    A. (- 5, 1)
    B. (5, - 1)
    C. (- 1, - 5)
    D. (- 5, - 1)
    Correct Answer: D

Solution:

    Step 1: Start at the origin.
    Step 2: The point C is 5 units to the left of the Y-axis.
    Step 3: So, the X-coordinate of point C is - 5.
    Step 4: Point C is 1 unit below the X-axis.
    Step 5: So, the Y-coordinate of point C is - 1.
    Step 6: The coordinates of the point C are (- 5, - 1).

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