Which table represents a function?
Input (x)
-2 0
Output (y) 3 3 6
2
4
6
6
Input (2)
Output (y) -50 5 10
9
-5 -5 -5 -5 -5
15
Input (x)
Output (y)
-4-2-2
6
10
8 10
-1
0
12 14
Input (x)
20 30 30
Output (y) -5-6-7-8-9
40