Sarah was mapping out the location of two historical sites in her hometown for a history project. One site was plotted at (–4, 7) and the other site was plotted at (3, 2) on the map. She needs to find the distance between the two sites. Each unit on the grid is one mile. Sarah drew lines to form a right triangle using these two points as two of the corners. Explain how Sarah can use the Pythagorean Theorem to find the distance between the two points so she can find the distance between the two historical sites.