coordinate plane

When one horizontal line intersect a vertical line, we get a coordinate plane.Generally, we call the horizontal line as x-axis and the vertical line as y-axis.The two lines intersect at 0 point.This point is known as the origin and is written as (0,0).

The following terms are used in the coordinate plane.
1) x-axis
2)y-axis
3)ordered pairs
4)plane                                                   
5)coordinates
6)origin
7)intersection
8)number line.
The following diagram is an example of coordinate plane.


You can also see the given link for coordinate geometry help
A coordinate plane can be divided into 1st quadrant, second quadrant, third quadrant and fourth quadrants.
They are denoted by the Roman letters I,II,III and IV respectively.