Decide whether or not the set of ordered pairs defines a function.
-$\{ ( - 6 , - 1 ) , ( - 6,7 ) , ( 2 , - 8 ) , ( 6 , - 9 ) , ( 7,2 ) \}$
A) Yes
B) No

Question

Quizplus · Accepted Answer

A function is defined such that each input (x-value) maps to exactly one output (y-value). The given set has the input -6 mapping to two different outputs (-1 and 7), thus it does not define a function.

Decide Whether or Not the Set of Ordered Pairs Defines {(−6,−1),(−6,7),(2,−8),(6,−9),(7,2)}\{ ( - 6 , - 1 ) , ( - 6,7 ) , ( 2 , - 8 ) , ( 6 , - 9 ) , ( 7,2 ) \}{(−6,−1),(−6,7),(2,−8),(6,−9),(7,2)}

Decide Whether or Not the Set of Ordered Pairs Defines $\{ ( - 6 , - 1 ) , ( - 6,7 ) , ( 2 , - 8 ) , ( 6 , - 9 ) , ( 7,2 ) \}$