Question 1*. Let A = {1,2, 3, 4} and B = {1,2,3}. Determine whether the following sets are functions from A to B. For those that are not functions, state everything that is preventing them from being functions. (а) л %3D {(1,4), (2, 3), (3, 2), (4, 1)}, (b) f2 = {(1,2), (3, 2), (4, 2), (2, 3)}, (с) fs %3 {(1,2), (2, 3), (4, 3)},

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Question 1*. Let A = {1,2, 3, 4} and B = {1,2,3}. Determine whether the
following sets are functions from A to B. For those that are not functions, state
everything that is preventing them from being functions.
%3D
%3D
(а) i %—D
{(1,4), (2,3), (3, 2), (4, 1)},
(b) f2 = {(1,2), (3, 2), (4, 2), (2, 3)},
(c) f3 = {(1,2), (2, 3), (4, 3)},
Transcribed Image Text:Question 1*. Let A = {1,2, 3, 4} and B = {1,2,3}. Determine whether the following sets are functions from A to B. For those that are not functions, state everything that is preventing them from being functions. %3D %3D (а) i %—D {(1,4), (2,3), (3, 2), (4, 1)}, (b) f2 = {(1,2), (3, 2), (4, 2), (2, 3)}, (c) f3 = {(1,2), (2, 3), (4, 3)},
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