Answer:
linear function
Explanation:
A linear function refers to when the dependent variable y changes by a constant amount as the independent variable x also changes by a constant amount.
the changes in y are
25 - 15 = 35 - 25 = 45 - 35 = 55 - 45 = 65 - 55 = 5 ← constant
the changes in x are
2 - 1 = 3 - 2 = 4 - 3 = 5 - 4 = 6 - 5 = 1 ← constant
since the changes in both x and y are constant then the table represents a linear function.