Question

(a) If A= {1.2.3), B={4,5,6), then whether {(1,4), (2,5), (1.6). (3.6)} is
function ​

Answer 1

Answer:

no it is not a function because 1 matches to two elements of B (1,4) and (1,6).

it is only a function if one element of A would only match to element from B once

it also depends on if the function is from A to B then only my answer is right.