Which of the sets of ordered pairs represents a function?
A = {(1, −2), (3, −5), (5, 2), (7, 5)}
B = {(4, 2), (4, −2), (9, 3), (9, −3)}
- set a
- set b
- both a and b
- neither a or b

Respuesta :

it is the letter a because it is a

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