Graph the linear equation y = -x + 8 and y = x/3 -4 (p. s the x/3 as in x over three)

One integer is 5 more than another. their product is 104. find the integers

Can someone tell me if this is perpendicular? !

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.