For a series of length 169, we find that r1 = 0.41, r2 = 0.32, r3 = 0.26, r4 = 0.21, and r5 = 0.16. what arima model fits this pattern of autocorrelations?

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function