For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation.
yes; y = 2x yes; y = 2 x yes; y = 0.5x yes; y = 0.5 x yes; y = 1.5x yes; y = 1.5 x no; y does not vary directly with x. no; y does not vary directly with x.