r each relation, decide whether or not it is a function Relation 1 Relation 2 Domain Range Domain Range U 4 n h C 4 h 2 8 n -2 m g d Function Not a function O Function O Not a function Relation 3 Relation 4 Domain Range Domain |Range C desk 4 X cloud 0 cloud - 8 g pen 1 2 sun O Function S pen O Not a function Function Not a function