Draw the graph of the equation y = 3x
 From your graph, find the value of y when
 $(i)x=2$
$(ii)x=-2$

(i) It is given
 y = 3x
 Substituting x = 1 in the given equation 
 y = 3(1) 
 so we get
 y = 3
 Substituting x = -1 in the given equation 
 y = 3 (-1) 
 So we get 
 y = -3 
 

X	1	-1
y	3	-3

Now draw a graph using the points A(1,3) and B(-1,-3)
 Join the points AB through a line and find the value of y
 Based on the graph.
 i)Consider x = 2 on X-axis as point M
 Now the line joining AB and point on the Y-axis gives the value of y 
 Therefore, when x = 2 the value of y = 6

 Substituting x = 2 in the given equation 
 y = 3(2) 
 So we get 
 y = 6
 

x	1	2
y	3	6

 Now draw a graph using the points A (1,3) and (2.6) Join the points PQ through a line and find the value of y.
Based on the graph 
 Consider x = 2 on X-axis as point P
 Now the joine joining AB and a point on the Y-axis gives the value of y 
 Therefore, when x = -2 the value of y = -6