Which table represents a linear function?
y
3
6
12
24
X
1
234
2
4
O
X
1
2
3
4
X
1
23
2
4
O
y
2
5
9
14
y
-2
-4
-2
0
X
1-3
-5
-7
-9
2
3
4
y
ot