The coordinates of the vertices of quadrilateral ABCD are A(-1, -1), B(-3, 3), C(1, 5), and D(5, 2).

Answer blank #1: The slope of AB is ______

Answer blank #2: The slope of BC is ______

Answer blank #3: The slope of CD is ______

Answer blank #4: The slope of AD is ______

Answer blank #5: Quadrilateral ABCD is a _________ (choose: trapezoid or parallelogram)

For answer blank #5 make sure you spell your answer correctly!