johnsongracea johnsongracea 28-11-2016 Mathematics contestada Which of the follow is NOT a function? * I need work. A. (1,2),(3,4),(5,6),(7,8) B. (1,2),(1,3),(1,4),(1,5) C. (1,1),(2,1),(3,1),(4,1) D. (1,1),(2,2),(3,3),(4,4)