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1. Miriam is an aspiring meteorologist. She makes a table in which she numbers each day of the current calendar year-from 1 to 365 -- in the input column. She records the corresponding high temperature in her town for each of these days. Miriam wonders whether the table would be a function if she reversed the input and output columns. If the input column contained the daily high temperature and the output column contained the day of the year (from 1 to 365), would the relationship be a function? Answer "Yes," "No," or "Maybe," and explain your answer.

User String QNA
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1 Answer

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It is a function when she inputs the days first and recorded the temperature.

The answer is No.

In the second option when she reversed the input and output columns, it is not a function because the temperature will repeat sometimes and one characteristic of a function is that the input column does not repeat.

User Joel Bodenmann
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