(4 marks) Three difference equations of the form Pn= f(P-1) are given below. For each graph y = = f(x) and y = x, draw a cobweb plot, and use that cobweb plot to analyse the long-term behaviour of each difference equation. (a) Po= 0.8 and Pn= f(Pn-1), where f(x) (b) Po= 0.8 and Pn= f(Pn-1), where f(x) = = 2 I 2 -0.1. (c) Po= 0.8 and Pn = f(Pn-1), where f(x) +0.1. Are there windows of periodic behaviour within chaotic regimes in case the long-term behaviour is chaotic for any of these equations? What periodicity do they have?