4. Plot the following points and check whether they are collinear or not: (ii) (1, 1), (2, -3), (-1, -2) 1 2 3% 4. Plot the following points and check whether they are collinear or not: (ii) (1 June 28, 2021 Category: Chapter 3 - Coordinate Geometry , Maths , NCERT Class 9 ,