Write a rule for the function represented by the table

Question

x y
0 9
1 28
2 47
3 66

A.y=9+19x
B.y=18+10x
C.y=19+9x
D.y=10+18x

Answer 1

note that y grows by 19 when x grows by 1.

So, start with y = 19x

Now adjust that so it fits the table.

Answer 2

so its a?

Answer 3

seems likely