Decide Whether the Relation Defines a Function $$\{ ( 1 , - 4 ) , ( 2 , - 2 ) , ( 6,7 ) , ( 8 , - 7 ) , ( 11 , - 1 ) \}$$

Multiple Choice

Decide whether the relation defines a function.
- $$\{ ( 1 , - 4 ) , ( 2 , - 2 ) , ( 6,7 ) , ( 8 , - 7 ) , ( 11 , - 1 ) \}$$

A) Function
B) Not a function