document.write( "Question 371691: explain when to use a solid line as a boundary when graphing a linear equation \n" ); document.write( "
Algebra.Com's Answer #264741 by Fombitz(32388)\"\" \"About 
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Lines as boundaries are only used with regards to inequalities.
\n" ); document.write( "When the inequality has an equal sign, then the solid line shows that the line is also in the solution region.
\n" ); document.write( "When the inequality does not have an equal sign, a dotted or dashed line is used to signify that the line is not part of the solution region and only signifies a limit.
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