The answer is the first choice because:
0 * 6 = 0
1 * 6 = 6
2 * 6 = 12
When the input is 0, the output is 0. As the input increases by 1, the output increases by 6.
0 | 0
1 | 6
2 | 12
OR
0 | 0
1 | 6
2 | 36
1 answer