Question

Which of the following relation is not function ?
a) {(2,1), (3.1), (4,1)
b) {(2,5), (2,6), (2,7)}
c) {((2,1), (3,2))
d) {(2,1), (1.2)​

Answer 1

Answer:

a) {(2,1), (3.1), (4,1)}

explanation:

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