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A Closed Circle means that that number is INCLUDED in the line of numbers.

An OPEN circle means the line of numbers go up to the given number , BUT does NOT include the given number.

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lenpollock

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6mo ago

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Wiki User

12y ago

It means that the value represented by the circle is part of the solution set.

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Q: What does a closed a circle in a number line mean?
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Related questions

Is Closed interval finite?

Assuming its endpoints are not equal, a closed interval of the real number line a has an infinite number of real numbers in it. Closed intervals of other ordered sets can have either a finite or an infinite number of elements. I am not sure I answered your question because I am not exactly sure what you are asking. Could you be more specific? Are you talking about a closed interval of the real number line or closed interval of some other ordered set? By finite do you mean 'containing a finite number of elements' or do you mean 'bounded by a finite number'.


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