l. The solution to the system -2x'-3x- 3y- 12 = 0 and x+y+4 = 0 is A. (0, 4) B. (0, 4) C. (2, 6) D. there is no solution to the system 2. The system 2y = x + 3 and y = 9r2 + 1 can be solved by elimination by A. eliminating the xZ-term by adding or subtracting equations B. eliminating the x-term by adding or subtracting equations C. eliminating the y-term by adding or subtracting equations D. this system cannot be solved using elimination 3. The system y = 4x + 3 and y = Jr2 + 2x + n will have no solution when A. n54 B. n4 4. For the inequality y 2 2x2 - 5x 6, the test point (2, 8) A. can be used to determine the solution region because it lies on the boundary B. cannot be used to determine the solution region because it lies on the boundary C. can be used to determine the solution region because it does not lie on the boundary D. cannot be used to determine the solution region because it does not lie on the boundary