dylannhandy
dylannhandy
20.08.2019 • 
Mathematics

Which of ordered pairs is not a function ?
1.) (0,9) , (9,0) , (1,2) , (3,4)
2.) (0,1) , (-1,0) , (1,2) , (3,2)
3.) (2,3) , (3,4) , (4,5) , (5,6)
4.) (2,3) , (2,4) , ( 4,5) , (4,6)

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