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(8,5),(7,2),(3,-3)(9,5)function or not function?
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(8,5),(7,2),(3,-3)(9,5)function or not function?

User Eslimaf
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The relations that are functions have one and only one value in the image for each value in the domain. This is the condition.

In this case, each value of the domain (8, 7, 3, 9) has one and only one value in the image. So it is a function.

User Andre Leon Rangel
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