You can put this solution on YOUR website! Hi, there--
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Are you talking about graphing inequalities on a number line? If the circle is shaded, it means that number is included in the solution. If the circle is not shaded, it means that number is NOT included.
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For example, if the inequality is "x is greater than or equal to three,"
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then the graph is a shaded circle drawn at three and a thick arrow to the right. The number three is included in the solution.
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If the inequality is "x is less than 5,"
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then the graph would be an unshaded circle at 5 and a fat arrow to the left. The number 5 is NOT part of the solution.
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Hope this helps. Feel free to email via gmail, if you still have questions about this.
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Ms.Figgy
math.in.the.vortex