AB and BC form a right angle at point B. If A = (-3,-1) and B = (4,4), what is the equation of BC

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.