Identify which table shows a direct variation.


Two tables. For each table the column headings are x and y. Table 1 has column one values of 1, 2, 3 and column 2 values of 19, 38, 57. Table 2 has column 1 values 5, 6, 7 and column 2 values 48, 72, 84.

A

Table 1 only

B

Table 2 only

C

both tables

D

neither table