For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.

x 2 3 4 5

y - 6.6 - 9.9 - 13.2 - 16.2

It is direct variation if x/y is a constant.

x/y = 2 / - 6.6 = - 1/3.3

y/x = - 9.9/3 = - 3.3

y/x = - 6.6 / 2 = - 3.3

y/x = - 13.2 / 3 = - 3.3

y/x = - 16.2 / 3 = - 3.24

So its not exactly direct variation as the last values is slightly different from the first 3.