How to solve this relation question? the answer is given, but could someone explain? i don’t understand what x and y is in this question.

Step-by-step explanation:

The relation R is x = y/2   and  values of x and y must be in the set A. That is they must be 1 , 2 or 4 and satisfy the relation x = y/2.

So the ordered pairs in this relation are (1, 2) and (2, 4) .  Note that 4 cannot be x as that would make y = 8 which is not a member of  Set A.

I hope this helps.

2.5 you go to 2 and you go half of 2

Step-by-step explanation:

2.5 is like 2 and a 1/2