listed in the item bank are key terms and expressions, each of which is associated with one of the columns. some terms may display additional information when you click on them. drag and drop each item into the correct column. order does not matter.

so im basically asking which ones are proportional linear relationships and non proportional linear relationships

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.