Question

Does this set of ordered pairs represent a function? Why or why not? {(–1, 5), (0, –3), (2, 7), (4, 0), (7, 5)} A. No, because two of the y-values are the same. B. No, because one x-value corresponds to two different y-values. C. Yes, because every x-value corresponds to exactly one y-value. D. Yes, because there are two x-values that are the same.

Answer 1

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Answer:

C. Yes, because every x-value corresponds to exactly one y-value.

Explanation:

The list of x-values is {-1, 0, 2, 4, 7}. We note that no two are the same, so this is a functional relation.

The set of ordered pairs is a function because each x-value corresponds to exactly one y-value.