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Help me with question 3
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Help me with question 3

Help me with question 3-example-1
User Suelyn
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Answer:

I believe it would be C.

User Nini
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Answer: Choice D

The input x = 1 leads to multiple outputs y = 1 and y = 2 simultaneously, which is why choice D isn't a function.

A function is only possible if any input leads to exactly one output only. Choices A,B and C are all functions for this reason.

User Screenack
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