Which two of the following graphs indicate that $y$y is directly proportional to $x$x?
Given that $y=2x$y=2x, find the missing values in the table.
Given that $y=0.3x$y=0.3x, find the missing values in the table.
Consider the values in each table. Which of them could represent a directly proportional relationship between $x$x and $y$y?