According to the rule y = x / 2, x divided by two should always be equal to Y. You can test this by diving each X by 2 and seeing if it equals Y, which it does for every single one. See here:
0 = 0/2 --- true.
1 = 2/2 --- true.
1.5 = 3/2 --- true.
2 = 4/2 --- true.
Hope this makes sense! Please ask if you have any questions.
