Grade 10 Math
posted by Rebecca .
Verify that the vertices A(6.1),B(2,5),C(6,1) and D(2,4) are the vertices of a trapezoid. Does anyone know the steps to solve this? Thanks so much.

slope ab = 6/8 = 3/4
slope bc = 6/4 = 3/2
slope cd = 3/4 = 3/4
slope da = 3/8
note AB is parallel to CD 
thanks so much?
could you please tell me the formulas you used to get those answers? 
thanks so much!
could you please tell me the formulas you used to get those answers?