A b c d ?? help me pleas and ty

Having a hard time understanding this question (see attachment).

Write 37/22 as a decimal rounded to the nearest hundredth.

Xf(x) = 2x + 5 1 7 2 9 3 11 4 13 5 15 6 17 linear functions grow by equal differences over equal intervals. in the table above, what column could be added to prove this relationship?