WILL GIVE BRAINLIEST. determine the rule for the table and complete it.

Answer:
see explanation
Step-by-step explanation:
From the table
1 → - 2 ⇒ 1 - 3
2 → - 1 ⇒ 2 - 3
3 → 0 ⇒ 3 - 3
The rule is subtract 3 from the input to obtain output , then
4 → 4 - 3 = 1
n → n - 3 ← is the general rule for the table