Coordinates
Definition of Coordinates
In a twodimensional 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).
 Xcoordinate is the first number in an ordered pair and represents the horizontal position of an object in the coordinate plane.
 Ycoordinate 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
Solved Example on Coordinates
Ques: Identify the coordinates of the point C from the graph.
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 Yaxis.
Step 3: So, the Xcoordinate of point C is  5.
Step 4: Point C is 1 unit below the Xaxis.
Step 5: So, the Ycoordinate of point C is  1.
Step 6: The coordinates of the point C are ( 5,  1).
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