Dividing "A" by 2 we get A) w + L = 11 B) width * length = 30 length = 30 / width and we put this into equation "A" w + 30/width = 11 Multiplying both sides by width width^2 + 30 = 11w
w^2 -11w + 30 =0 width = 5 and/or width =6 Therefore length = 5 and/or length =6 (2,2) (2,7) Difference in x = 0 and difference in y = 5 So, we'll make x=6 and the 2 other coordinates are (8, 2) and (8, 7)