On R2, which we call the ty-plane or tu-plane instead of mic-plane, a bunch of points 0 11\" 1)! (t2 '\"2)! m. (tmtum) on the plane can be "best fit" by a straight line Y\") = at + b on the same plane when the sum of 250% ' \"ting the distance " u - V " between the two U 1 wt) U 2 V02) squares is minimized over suitably chosen Cl 'b , namely when u: 'V': um Van?) is minimized over suitably chosen Cl 'b . This optimization problem can be formulated as a least square problem in the a B =u form b where B is m-by2. Determine the matrix B. I4 vectors