Question

Let A = {7, 8, 9} and let B = {3, 4, 5, 6}. Find A X B.

Answer 1

there are 12 point like (x,y) for example (7,3) and so on in one set.

Answer 2

like this?
{(7, 3), (7, 4), (7, 5), (7, 6), (8, 3), (8, 4), (8, 5), (8, 6), (9, 3), (9, 4), (9, 5), (9, 6)}

Answer 3

That is correct.