1. Minimize f(x, y) = x+x+2y2 +0.25 x1 using Powell method. Use x = (-1,-1)Tas a starting point. The stopping criteria & = 0.001. Conduct one iteration only. Tabulate the ten values (from A to J in the allowed formulas sheets). These values are f(x1), a, x2(,), 2, x3 (,), 3, Af, AxT Ax.