If the area of the rectangle to be drawn is 42 square units, where should points b and d be located if they lie to the right of points a and c?

b(4, 4) and d(4, −3)
b(−3, 4) and d(4, 4)
b(2, 3) and d(2, −4)
b(2, 4) and d(2, −3) (graph is screenshoted)

We know a square is four equal sides.  Saying this there are seven squares between A and C so, with the knowns of four equal sides and seven square between A and C you can divide 42/7=6.  With this information count six squares to the right from A and the same for C with a result of

B(2,4), and D(2,-3) per graph.