Never-zero continuous functions Is it true that a continuous function that is never zero on an interval never changes sign on that interval? Give reasons for your answer.

College Algebra
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ISBN:9781938168383
Author:Jay Abramson
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Chapter4: Linear Functions
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Problem 4RE: Determine whether the function is increasing ordecreasing. g(x)=x+2
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Never-zero continuous functions Is it true that a continuous function that is never zero on an interval never changes sign on that interval? Give reasons for your answer.

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