Cartesian Plane
Definition of Cartesian Plane
A Cartesian Plane is a plane consisting of a set of two lines intersecting each other at right angles. The horizontal line is the Xaxis and the vertical one is the Yaxis, and the point of their intersection is called the origin with the coordinates (0, 0).
More About Cartesian Plane
 The location of any point on the coordinate plane is denoted by using pair of coordinates (X, Y), where X is the horizontal distance from the origin and Y is the vertical distance from the origin.
 The X and Yaxis on the coordinate plane is always perpendicular to each other.
Video Examples: Math Tutorial  Cartesian Plane
Example of Carroll Diagram
Solved Example on Carroll Diagram
Ques: Identify the coordinates of the point C on 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 from 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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