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Evgesh-ka [11]
3 years ago
6

Lots of points.

Mathematics
1 answer:
Kazeer [188]3 years ago
3 0

Answer:

1.  Not a function.

2. This is a function.

3. This is a function.

Step-by-step explanation:

1. 13 maps on to 4 and -4 so not a function.

2 and 3 - these both pass the vertical line test so they are functions.

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