In which table(s) does y vary directly with x? Check all that apply.
A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 3, 6, 7. Column 2 is labeled y with entries 3, 9, 18, 21.
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 4, negative 2, 2, 6. Column 2 is labeled y with entries negative 2, negative 1, 1, 3.
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 2, negative 1, 2, 5. Column 2 is labeled y with entries 2, 1, negative 2, negative 5.
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries 0, negative 1, negative 2, negative 3.
