Which set of ordered pairs represents a function from P to Q? P = {5, 10, 15, 20} Q = {-2, 0, 2}
A){(5, -2), (10, 0), (10, 2), (15, 0), (20, -2)}
B){(15, -2), (15, 0), (15, 2)}
C){(15, 0), (10, -2), (5, 0), (10, 2), (15, -2)}
D){(10, 0), (15, 2), (20, 0)}
E){(5, 2), (15, 0), (5, -2), (15, 2)}

Question

Quizplus · Accepted Answer

For a set of ordered pairs to represent a function from set P to set Q, each element of P must be associated with exactly one element of Q. Choice D is the only option where each element from set P (10, 15, 20) is paired with exactly one element from set Q without any element from P being paired with more than one element from Q.

Which Set of Ordered Pairs Represents a Function from P