If x+2y=3 is a line and A (−1,3); B (2,−3); C (4,9) are three points, then :-
1. A is on one side and B, C are on other side of the line
2. A, B are on one side and C is on other side of the line
3. A, C on one side and B is on other side of the line
4. All three points are on one side of the line