determine whether or not each relation is a function. write a function or not a function on the space provided. ___1. {(3, 3), (5, 6), (9, 6)} ___2. {(2,5),(2,6),(4,5),(4,6)} ___3. {(-3,-2),(-2,-1),(-1,0),(0,1)} ___4. {(4,1),(4,2),(4,3)} ___5. {(-8,-6),(6,8),(7,7),(7,8)}