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An equation, f, has a domain of all whole numbers and has a range of all real numbers. Does the equation represent a function? Explain why or why not.

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This equation could represent a function, but does not necessarily represent one. The key question here has a different focus: Does the relationship (equation) associate one and only one y - value for each x - value? If so, the relationship represents a function; otherwise, it does not.

User Jeff Langemeier
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