Answer:
Option 3, {(3, 2)(-3, 1)(4, (2)/(5))(-3, (2)/(5))(1, 1)}
Step-by-step explanation:
If we look carefully at all of the relations, you'll find that sometimes, the y-value will repeat. This is normal for functions and is perfectly acceptable. However, if the x-value repeats, then the relation is not a function.
Hope this explanation helps!
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