1. The linear equation: y = m x + b m = 3 - 2 = 3 · 1 + b - 2 = 3 + b b = - 5 Answer: A ) y = 3 x - 5 2. We will solve the system of equations: 12 = - 4 m + b / · ( - 1 ) 23 = 7 m + b ---------------------- - 12 = 4 m - b + 23 = 7 m + b -------------------- 11 = 11 m, m = 1, b = 16 Answer: A ) y = x + 16