Which set of ordered pairs represents a function from A to B
A = {a,b,c} and B = {4,3,1,2}

A){(a,4), (b,3)}
B){(a,2), (c,3), (b,4 )}
C){(a,4), (c,1)}
D){(a,1), (c,3), (c,1), (b,4)}
E){(a,4), (c,3), (c,1), (b,1)}

Question

Which set of ordered pairs represents a function from A to B
A = {a,b,c} and B = {4,3,1,2}

A){(a,4), (b,3)}
B){(a,2), (c,3), (b,4 )}
C){(a,4), (c,1)}
D){(a,1), (c,3), (c,1), (b,4)}
E){(a,4), (c,3), (c,1), (b,1)}

Quizplus · Accepted Answer

A function from A to B means each element in set A is associated with exactly one element in set B. Choice B is the only option where each element from A (a, b, c) is paired with exactly one element from B without any element from A being paired with more than one element from B.

Which Set of Ordered Pairs Represents a Function from a to B