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!