Identify the relation that is also a function. A. { (1, 0) (2, 3) (3, - 2) (1, 6) } B. { (3, 2) (3, - 2) (3, 6) (3, 8) } C. { (-1, 1) (0, 0) (1, 1) (2, 4) } D. { (3, 4) (2, 3) (3, 6) (2, 0) }

Question

Bria Chan

Mathematics

13 July, 02:30

Identify the relation that is also a function. A. { (1, 0) (2, 3) (3, - 2) (1, 6) } B. { (3, 2) (3, - 2) (3, 6) (3, 8) } C. { (-1, 1) (0, 0) (1, 1) (2, 4) } D. { (3, 4) (2, 3) (3, 6) (2, 0) }

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Answers (2)

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Skylar Liu · Answer 1

C is the function.

Step-by-step explanation:

C is the only relation which is one-to-one. Each value of x is different and maps to a different value of y.

A for example is one-to-many because 1 maps to 0 and 1 maps to 6 so it is not a function.

Aria Donaldson · Answer 2

C. { (-1, 1) (0, 0) (1, 1) (2, 4) }

Step-by-step explanation:

A relation is not a function if values of the independent variable are repeated.

A: (1, - ) appears twice

B: (3, - ) appears 4 times

C: a function

D: (3, - ) appears twice; (2, - ) appears twice