The coordinates of a quadrilateral are shown: • point j (–4.5, 3) • point k (–1.2, 3) • point l (–1.2, 8.7) • point m (–4.5, 8.7) brenda claims that quadrilateral jklm is a square. part a show or explain why brenda is not correct. enter your work or explanation in the box provided. part b select new coordinates for point l and point m so that quadrilateral jklm is a square. show or explain all of the steps you used to determine the new locations of the two points. enter your answers and your work or explanation in the box provided.