Which of these trends represents an inverse variation?

x y
1 12
2 6
3 4
4 3


x y
1 8
2 16
3 24
4 32


x y
1 -100
2 -50
3 -100/3
4 -25


x y
1 6
2 3
3 2
4 1.5


x y
1 2
2 0
3 -2
4 -4