Two points on L1 and two points on L2 are given. Use the slope formula to determine if lines L1 and L2 are parallel, perpendicular, or neither.
1. L1: (-2, 0) and (0, 6)
L2: (1, 3) and (0,3)
2. L1: (6.2) and (8, -2)
L2: (5. 1) and (3, 0)
3. L1 (-5, -1) and (4, 4)
L2 (4, -7) and (8, 10)
