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Is [-4,1],[0,3] a function ?yes or no

User Raychz
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A function has an input value and an output value. And the output is related somehow to the input value. A function has only one relationship for each input value. Every element in the input must be related to an output value. x is usually the input while y is the output value.

Therefore, the question above is a function .

User LynAs
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