For each relation, decide whether or not it is a function. Relation 1 Relation 2 Domain Range Domain Range m* ] J 5 z 0 s 8 2 i u 3 a X J O Function O Not a function O Function O Not a function Relation 3 Relation 4 Domain | Range Domain | Range e pen -8 6 m sky -8 25y c rock -8 8 e sky 2 -9 y rock O Function g desk O Not a function O Function O Not a function