Which group below shows the rule: output equals four times input? Yes
The equation that represents the rule "output equals four times input" can be written as:
Output = 4 x Input
So, looking at the answer options, the group that shows this rule is:
Input | Output
------|--------
1 | 4
2 | 8
3 | 12
4 | 16
Therefore, the answer is the fourth group.