# Cartesian Representation

Cartesian is a coordinate system that specify the position of numbers and vectors in a plane. Cartesian plane may be two dimensional or three dimensional. The axes of system (x-axis, y-axis and z-axis) help to measured to distance. **For Example:** if we are given with point (10, 5), it means move 10 units in the x direction(right form the origin) and 5 units towards y direction (upward). A Cartesian coordinate system in a 2D plane has two perpendicular lines (horizontal axis and vertical axis); in 3 D plane, it has three axes (x-axis, y-axis, z-axis). In this section will study about two dimensional Cartesian system, which is defined by an ordered pair of perpendicular axes.