Question

Which set of ordered pairs

represents a function?
A. (5,-8),(8,-1),(8,7),(-4,2)
B. (-9,-9),(7,-9),(-7,-7),(9,-8)
C. (4,7),(-7,-4),(6,8),(-7,6)
D. (0,8),(-7,2),(4,-9),(4,-3)

Answer 1

C. (4,7), (-7, -4), (6, 8), (-7, 6)

Explanation:

There are no repeating numbers. For example, in answer A, 8 is repeated, (8, -1) and (8, 7)

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