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Mathematics 9 Online
OpenStudy (anonymous):

Whats the difference between a closed circle and open circle for equalities/inequalities?

jimthompson5910 (jim_thompson5910):

A closed circle includes the point An open circle excludes the point

jimthompson5910 (jim_thompson5910):

So if you have something like this |dw:1338842821059:dw| then you're excluding -2 from the solution set and saying every number greater than -2 is part of the solution set

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