Name _____________________________ Date ___________________
Coordinate Geometry
Given the coordinates of quadrilateral ABCD, determine if ABCD is a parallelogram.
If ABCD is a parallelogram, determine whether ABCD is a rectangle.

 1 (3, -2), (-2, -2), (-2, -7), and (3, -7)
 2 (1, 0), (4, 0), (4, -3), and (1, -8)
 3 (-3, 3), (2, 3), (5, 7), and (0, 7)
 4 (2, 3), (7, 3), (7, -3), and (2, -3)
 5 (-3, -7), (6, -7), (6, 2), and (-3, 2)
 6 (-5, 0), (3, 0), (3, -9), and (-5, -9)
 7 (-1, -4), (-4, 2), (-4, 6), and (-1, 6)
 8 (3, -6), (9, -6), (7, -1), and (1, -1)
 9 (3, 4), (-2, 4), (-2, 8), and (3, 8)
 10 (8, 1), (14, 1), (14, 10), and (8, 10)
 11 (-4, 5), (-7, 5), (-6, 11), and (-3, 11)
 12 (-7, -3), (-14, -3), (-14, 1), and (-7, 1)
 13 (-2, -1), (4, -1), (4, -6), and (-2, -5)
 14 (-6, -1), (-13, -1), (-13, -2), and (-6, 5)
 15 (0, 1), (-9, 1), (-8, -3), and (1, -3)
 16 (-8, -4), (0, -4), (0, -1), and (-8, -1)
 17 (6, 5), (-2, 5), (-2, 12), and (6, 12)
 18 (3, 0), (-5, -1), (-5, -6), and (3, -6)