Which is the function represented by the table?

A 2-column table with 4 rows. Column 1 is labeled x with entries negative 2, negative 1, 0, 1. Column 2 is labeled f (x) with entries negative 8, negative 4, 0, 4.
f (X) = 4 x
f (x) = x minus 6
f (x) = x + 4
f (x) = negative 4 x