To graph a vector first locate the top number of the matrix which is the value of the vector in the x-axis. Label it as "x”. Similarly, locate the bottom number of the matrix which is the value of the vector along the y-axis. Label it as "y." Now plot the Point P (x, y) onto the graph. These points can also be called as the Cartesian or Rectangular coordinates. Draw a line from the fixed point or origin O (0, 0) to the point P (x, y). This represents the direction of the vector and the length represents the magnitude of the vector as OP.
An important part to be discussed here is the Unit Vector Notation. A unit vector is the vector with unit magnitude. Represent the unit vector as x – value in front of “i” along x- axis and y – value in front of “j” along y axis. Now plot the point Q (x, y) in the graph. The same approach has to be followed for unit vector also by drawing a line from the origin point O (0, 0) to the point (x, y). The vector is now complete with its magnitude as OQ.