Which relation describes a function?
A. (0, 0), (0, 2), (2, 0), (2, 2)
B. (−2, −3), (−3, −2), (2, 3), (3, 2)
C. (2, −1), (2, 1), (3, −1), (3, 1)
D. (2, 2), (2, 3), (3, 2), (3, 3)
E. (4, 3) , (1, 8) , (4, 14) , (9, 16)
The relation that describes a function is the one where each input value (x-value) is paired with exactly one output value (y-value).
Out of the given options, only option B satisfies this condition. In option B, every x-value is paired with exactly one y-value, making it a function.