For #2, B is not a function because there are two outputs for 2. In order to be a function there must only be one output for every input.
I believe the answer to #1 is D for the same reason.
Answer:
I think I've answered this question already.
Step-by-step explanation:
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Answer:
4
Step-by-step explanation:
theres only 4 to pick from
Answer: to be true I don't understand this
Step-by-step explanation: