The given equation is y = 3x …….(i)

Now,

By putting x = 0 in equation (i), we get y = 0

By putting x = 1 in equation (i), we get y = 3

By putting x = 2 in equation (i), we get y = 6

By putting x = 3 in equation (i), we get y = 9

A table is form such that: