Answer:1. -302. undefined3. x intercept = 5/4 (5/4, 0) y intercept = 5 (0, 5)4. x intercept = 4/5 (4/5, 0) y intercept = 4 (0, 4)5. y = 46. undefinedStep-by-step explanation:1. 12+18/11-1230/-1 = -302. -15 + 20/-18 + 18 5/0 = undefined3. 4x + y = 5 0 + y = 5 y = 5 4x + 0 = 5 x = 5/44. y = 0 - 4 y = 4 0 = 5x - 4 4 = 5x 4/5 = x5. y = mx + b 4 = 0(3) + b 4 = b y = 0x + 4 y = 46. If a line is drawn through 1 it will be undefined