If the Function Is One-To-One, List the Inverse Function by Switching

If the function is one-to-one, list the inverse function by switching coordinates or inputs and outputs.
- $f = \{ ( - 9 , - 8 ) , ( 8,9 ) , ( 2,1 ) , ( - 2 , - 1 ) \}$

A) not one-to-one
B) $f ^ { - 1 } = \{ ( - 8 , - 9 ) , ( 9,8 ) , ( 1,2 ) , ( - 1 , - 2 ) \}$
C) $f ^ { - 1 } = \{ ( - 1,2 ) , ( 9,8 ) , ( - 8,8 ) , ( 1 , - 2 ) \}$
D) $f ^ { - 1 } = \{ ( - 1,2 ) , ( 2,8 ) , ( - 8 , - 9 ) , ( 1 , - 2 ) \}$

Correct Answer:

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