Is the set of ordered pairs a function? For each function, name the set of inputs (domain) and the set of outputs (range). (Dou, Ron), (Dou, Ian), (Dou, Vernon)
A) Function. Domain is {Dou}, range is {Ron, Ian, Vernon}.
B) Function. Domain is {Dou}, range is {Ron}.
C) Function. Domain is {Dou}, range is {Ron, Ian}.
D) Function. Domain is {Ron, Ian, Vernon}, range is {Dou}.
E) Not a function

Question

Quizplus · Accepted Answer

A function is defined such that each input is related to exactly one output. In this set, the input "Dou" is related to three different outputs ("Ron", "Ian", "Vernon"), which violates the definition of a function.

Is the Set of Ordered Pairs a Function? for Each