Use a graph paper for this question (Take 2‌cms=1 unit on both x and y axis)
(i) Plot the following points: A(0,4),B(2,3),C(1,1) and D(2,0).
(ii) Reflect points B,C,D on the y-axis and write down their coordinates. Name the images as B′,C′,D′ respectively.
(iii) Join the points A, B, C, D, D', C', B' and A in order, so as to form a closed figure. Write down the equation of the line of symmetry of the figure formed.