please help find matrix B

P5. Do not hand in. Likely to be featured in exam. On [R2, which we call the ty-plane or tu-plane instead of xy-plane, a bunch of points 01,111), 02,112), m, (tm,um) on the plane can be " best fit" by a straight line V(t) = at -I- b on the same plane when the sum of squares 2:0\" - V(t,-))2 is minimized over suitably chosen a ,b, namely when the distance II U - VII between the two vectors U 1 V01) u t u = 2 , V = V( 2) is minimized over suitably um V(tm) chosen (Lb. This optimization problem can be formulated as a b by-2. Determine the matrix 3. Note: Provide necessary a least square problem in the form 3[ ]= u where B is m- concise logic steps leading to your answer. No credit for correct answer without valid justification. Note: This " best fit" only minimizes the vertical distances from the m points to the fitting line. There is another " best fit" which minimizes the distances from the m points to the fitting line, as we discussed in class. The latter is a harder problem, a type of "nonlinear" least squares