Do the naive method and linear trend equation for MAD, please try to do on paper or easy to undertand

10. After plotting demand for four periods, an emergency room manager has concluded that a trend-adjusted exponential smoothing model is appropriate to predict future demand. The initial estimate of trend is based on the net change of 30 for the three periods from 1 to 4, for an average of +10 units. Use a = .5 and B = .4, and TAF of 250 for period 5. Obtain forecasts for periods 6 through 10. Period Actual Period Actual 1 210 6 265 2 224 7 272 3 229 8 285 4 240 9 294 5 255 10