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Hello will you please help me answer these questions and tell me what the ranges

Hello will you please help me answer these questions and tell me what the ranges-example-1

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For a relation to be a function, each input can only go to one output

In this problem, each input only goes to one output so it is a function

The domain is what the inputs are so the domain is {19,20,23}

The range is what the outputs are so the range is { 5,11}

User Mobile Ben
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