Determine graphically the coordinates of the vertices of a triangle, the equations of whose sides are:
(i) y = x,y = 2x and y + x = 6
(ii) y = x, 3y = x, x + y = 8
(i) A (0,0), B (2,4) C(3,3)
Determine, graphically, the vertices of the triangle formed by the lines y = x, 3y = x, x + y = 8.