Answer:
y = 3x + 1
Explanation:
Consider the differences between consecutive terms of y
1 → 4 → + 3
4 → 7 → + 3
7 → 10 → + 3
10 → 13 → + 3
13 → 16 → + 3
The differences are constant, the constant is the multiplier, that is
y = 3x
Given the point (0, 1 ) , thus add 1 to the 3x term , hence
y = 3x + 1 ← equation relating x and y