The primary rectangle would be from - 2 to - 1. f(- 2) = 0 f(- 1) = 2 this rectangle has 0 stature, subsequently it has no territory. A = length * width = 0.
second rectangle from - 1 to 0 f(- 1) = 2 f(0) = 4 this rectangle has stature of 2 (the base). range = stature * width = 2 * 1 = 2
third rectangle from 0 to 1 is the same A3 = 2 fourth rectangle from 1 to 2 is the same as the first: A4 = 0 * 1 = 0 Add up to range = A1 + A2 + A3 + A4 = 4
