Determine Whether the Function Is a One-To-One Function $$\mathrm { f } = \{ ( - 7 , - 8 ) , ( 8,7 ) , ( 1,1 ) , ( - 1 , - 1 ) \}$$

Multiple Choice

Determine whether the function is a one-to-one function.
- $$\mathrm { f } = \{ ( - 7 , - 8 ) , ( 8,7 ) , ( 1,1 ) , ( - 1 , - 1 ) \}$$

A) one-to-one
B) not one-to-one