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9. Which of the following relations is a function?


A. {(-1, - 4), (-1,0), (- 1,5), (- 1, 7), (- 1,9)}

B. {(-2, - 4), (-1, 7), (1, - 1), (1, 1), (3, 9)}

C. {(-4, 9), (- 3, 1), (- 2, 3), (- 2, 12), (0, 6)

D. {(0, - 4), (1, - 4), (2, 4), (3, 4), (4, - 4)}

9 Which of the following relations is a function A 1 4 10 15 1 7 19 B 2 4 1 7 1 1 1 1 3 9 C 4 9 3 1 2 3 2 12 0 6 D 0 4 1 4 2 4 3 4 4 4 class=

Respuesta :

The answer is D because the first number doesn’t reapeat

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