Question

One of the tables below contains (x,y) values that were generated by a linear function. Determine which table, and then write the equation of the linear function represented by the table.
Table #1
x 2 5 8 11 14 17 20
y 1 3 7 13 21 31 43


Table #2
x 1 2 3 4 5 6 7
y 10 13 18 21 26 29 34

Table #3
x 2 4 6 8 10 12 14
y 1 6 11 16 21 26 31