Which Sets of Ordered Pairs Are Functions $A = \{ ( 4,3 ) , ( 17,29 ) , ( 18,52 ) , ( 4,19 ) \}$

question 314

Multiple Choice

Which sets of ordered pairs are functions? $A = \{ ( 4,3 ) , ( 17,29 ) , ( 18,52 ) , ( 4,19 ) \}$ $B = \{ ( 19,4 ) , ( 52,18 ) , ( 29,17 ) , ( 3,4 ) \}$ $C = \{ 69,82,44,87 \}$

• A) \(A\) is not a function; \(B\) is a function; \(C\) is a function.
• B) \(A\) is not a function; \(B\) is a function; \(C\) is not a function.
• C) \(A\) is a function; \(B\) is not a function; \(C\) is not a function.
• D) \(A\) is a function; \(B\) is a function; \(C\) is not a function.
• E) \(A\) is not a function; \(B\) is not a function; \(C\) is not a function.

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Definitions:

Unions

Are organizations of workers that seek to defend and promote their members’ interests.

Communism

A political and economic ideology advocating for a classless society in which all property is publicly owned and each person works and is paid according to their abilities and needs.

Classless Society

An ideal society in which there is no division or class stratification among its members, implying equality in terms of status, wealth, and power.

Labour Force

The total number of people currently employed or in search of employment within a particular country or economic region.