Draw your own set of axes and draw the following straight lines: i) y = 2x ii) y = x — 1 iii) y = x + 3 iv) y = 3x + 2 v) x = -y

Sol: (B)
Green line represents first line- 2y x
Orange line represents second line- 1y x 
Blue line represents third line- 3y x 
Violet line represents fourth line- 3 2y x 
Red line represents fifth line- 2y x
Sol: (A) (a) from the graph, see the (i) line,
Intersection points of (i) line is (2,1), (0, 3) ,
Let these point are 1 1 2 2( , ) (2,1) and ( , ) (0, 3)x y x y  
We know that equation of line is:
1 1( )y y m x x  
Where slope 2 1
2 1
3 1 4
2
0 2 2
y y
m
x x
   
   
 ...