Question

Observe the table given below.

x	-2	-1	0	1	2	8	...
y	-4	-2	0	2	4	?	...

Find the relationship between x and y. What will be the value of y, when x = 8.

Answer 1

Soil When x = – 2y 

= 2(-2) 

= -4 

When x = -1y 

= 2(-1) 

= -2 

When x = 0

y = 2(0) 

= 0 

When x = 1

 y = 2(1) 

= 2 

When x = 2 

y = 2 (2) 

= 4

When x = 8 

y = 2(8) 

= 16. 

Also y = 2x is the relation between x and y.