Question

Use a graph paper for this question (Take 2 cm = 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.

Answer 1

(i) On graph 

(ii) B’(- 2, 3), C’(- 1, 1), D’(- 2, 0) 

(iii) Equation of the line of symmetry is x = 0