ndjdkdkxmxmmx ndjdkdkxmxmmx 07-12-2020 Mathematics contestada FOR 15 POINTS Which of the following relations represent a function? {(-1,-3),(3,2),(3,7)} {(-1,4),(2,7),3,7)} {(-3,7),(3,-7),(3,7)} {(-1,4),(-1,7),(3,5)}