Relation 1 Relation 2 Domain Range Domain Range pen 1 moor 6 6 desk -3 rock -7 -9 star 3 O Function O Not a function O Function Not a function Relation 3 Relation 4 ( ( f . j) . ( j. v). (v. v). (x, j)) ((9, c). (7, c).(-8, c),(0, c)) Function O Function O Not a function O Not a function