If the Function Is One-To-One, Find Its Inverse $$\{ ( 6 , - 7 ) , ( 11 , - 6 ) , ( 9 , - 5 ) , ( 7 , - 4 ) \}$$

Multiple Choice

If the function is one-to-one, find its inverse. If not, write ʺnot one-to-one.ʺ
- $$\{ ( 6 , - 7 ) , ( 11 , - 6 ) , ( 9 , - 5 ) , ( 7 , - 4 ) \}$$

A) $\{ ( 7,6 ) , ( 6,11 ) , ( - 5,9 ) , ( - 4,7 ) \}$
B) $\{ ( 6 , - 7 ) , ( 11 , - 6 ) , ( 9 , - 5 ) , ( 7 , - 4 ) \}$
C) $\{ ( - 7,6 ) , ( - 6,11 ) , ( - 5,9 ) , ( - 4,7 ) \}$
D) not one-to-one