Determine whether the function is a one-to-one function.
-$\mathrm { f } = \{ ( 2,4 ) , ( - 2 , - 4 ) , ( - 1 , - 2 ) , ( 1,2 ) \}$
A) not one-to-one
B) one-to-one

Question

Quizplus · Accepted Answer

A function is one-to-one if each x-value maps to a unique y-value and no y-value is repeated for different x-values. In this function, all x-values have unique y-values, making it one-to-one.

Determine Whether the Function Is a One-To-One Function f={(2,4),(−2,−4),(−1,−2),(1,2)}\mathrm { f } = \{ ( 2,4 ) , ( - 2 , - 4 ) , ( - 1 , - 2 ) , ( 1,2 ) \}f={(2,4),(−2,−4),(−1,−2),(1,2)}

Determine Whether the Function Is a One-To-One Function $\mathrm { f } = \{ ( 2,4 ) , ( - 2 , - 4 ) , ( - 1 , - 2 ) , ( 1,2 ) \}$