Select all the examples that describe a function:
1. ![]() |
2. ![]() |
3. ![]() |
4.![]() |
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5. (4,0),(3,1),(12,5),(4,-6),(-2,4) |
6.
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7. (0,0),(3,1),(12,5),(4,-6),(-2,4) |
8.
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