**??? - 2013 Q1**

1

Fig. 1 shows the graphs of

Fig. 1 shows the graphs of

*y*= |*x*| and y = |*ax*+b|, where*a*and*b*are constants. The intercepts of y = |*ax+b|*with the*x*- and*y*-axes are (-1,0) and (0,1/2) respectively(i) Find

(ii) Find the coordinates of the two points of intersection of the graphs. [4]

*a*and*b*. [2](ii) Find the coordinates of the two points of intersection of the graphs. [4]