From the following table, determine if x and y are in direct proportion or not.
(i) ![]()
(ii) ![]()
(iii) ![]()
In direct proportion, = k(constant)
For table (a),
![]()
⇒ ![]()
i.e. ![]()
So, (a) is not in direct proportion.
For table b,
![]()
⇒ ![]()
i.e. ![]()
So, (b) is in direct proportion.
For table (c)
![]()
⇒ ![]()
i.e. ![]()
so, (c) is in direct proportion.