A. Determine the equation of the line passing through the ratios of the following points: 1.A (2,3) and B (10,5) 2.C (5, -1) and D (-1,8) B. Determine the coordinates of the intersection of two lines x + y-4 = 0 and 2x-y + 1 = 0. Determine the equation of the line passing through this intersection and the point (-2,1).