Algebra-2

To determine which set of ordered pairs represents a function, we need to ensure that no two points have the same x-value. This is because, for a relation to be a function, each input (x-value) must map to exactly one output (y-value).

Option A

The input 8 maps to both 4 and -6, and the input 9 maps to both 5 and -5.

This set is not a function because the inputs 8 and 9 have multiple outputs.

Option B

The input 2 maps to both 3 and 7.

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