Mark the correct alternative in the following:
Let R be a relation on N defined by x + 2 y = 8. The domain of R is
We have , x + 2y = 8
y =
since, x and y are Natural numbers, So .. x must be an even number..
if x = 2, y = 3;
if x = 4, y = 2;
if x = 6, y = 1.
So, relation R = {(2, 3), (4, 2), (6, 1)}
Now, domain of R is {2, 4, 6}.
So, option C is correct.