2D Cartesian coordinate system

A 2D coordinate system is formed by X and Y axes — two lines drawn at right angles to each other on a flat surface. Each axis has a unit of length or distance, for example, centimeters or inches. Any point within the coordinate system has a pair of coordinates describing a distance relative to both the x and y axes (x,y). The point where the axes cross is called the origin, and the value of both x and y there is zero (0,0). A 2D system can describe points on a flat plane, and it only has width and length.^[1]