What does -∞ mean? (negative infinity?) – Khan Academy Centre d'aide

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Bailey Moore

2 avril 2017 20:10
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When I was practicing limits, the answer to one of the questions was -∞. Does this mean ¨negative infinity¨? What does ¨negative infinity¨ mean?

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Jett Burns

2 avril 2017 20:13
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You should probably ask this question under the corresponding video to get a more specific answer, instead of the Help Center. However, I'll help!

Infinity is just a concept of endlessness, and can be used to represent numbers going on forever. Negative infinity is the opposite of (positive) infinity, or just negative numbers going on forever.
Bailey Moore

2 avril 2017 20:24
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Oh, OK! Thanks!

I don´t know if negative infinity was mentioned in any of the videos; I just saw it on a practice question. I´ll go back and look.

*I have no idea why the apostrophe is an accent. Something is wrong with the keyboard layout...I don´t know.

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