Matt and Attean's relationship were different than Friday's and Crusoe's relationship because Matt taught Attean how to read and Crusoe saved Friday's life.  Also, Matt taught Attean his ABC's, and Friday became Crusoe's slave.  Matt gave Attean a book named Robinson Crusoe.  Crusoe named Friday after the day he saved him on.
    Friday and Crusoe's relationships were the same as Matt's and Attean's relationship because they both taught each other something. Also, because they both saved each other's life. That's how they are alike and different.