Q. Determine graphically the coordinates of the vertices of triangle, the equations of whose sides are given by  2y – x = 8 5y – x = 14 and  y –2x = 1 Sol.   We have  2y – x = 8         ........(1) 5y – x = 14       ........(2) y –2x = 1           ........(3) From equa…