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Yes. So long as the function has a value at the points in question, the function is considered defined.

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16y ago
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Q: If a function is equal to zero when x is zero is the function considered defined at that point?
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Related questions

What is the name for values of an independent variable for a function that make its derivative equal to 0 or not defined but are not within the domain of the original function?

That sounds a lot like a critical point to me.


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