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