Assume now that a and b are not necessarily equal vectors, but that they may have different magnitudes and directions.
The addition of a and b, point a(x1, y1), point b(x2, y2), C =(x1+x2)e1+(y1+y2)e2.
For example, add the vectors a = (9,11) and b = (2,7), then c = a + b, c = (9,11) + (2,7) = (9+2,11+7) = (11,18)