document.write( "Question 486068: Hello, I am confused on this, I thought the graph meant you know the regular area but then I looked at brackets and could tell something was different. Could you describe what the graph of interval [-4, 10] looks like? \n" ); document.write( "
Algebra.Com's Answer #332338 by Edwin McCravy(20055)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "[-4, 10]\r\n" );
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document.write( "You first draw a blank number line line this\r\n" );
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document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "Since it has brackets [ ] on the ends and not parentheses( ),\r\n" );
document.write( "we draw two solid circles at -4 and 10, like this:\r\n" );
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document.write( "----------⚫----------------------------------------⚫---------\r\n" );
document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "Then you shade the line between them:\r\n" );
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document.write( "----------⚫========================================⚫---------\r\n" );
document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "And that is the graph of the interval [-4,10].\r\n" );
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document.write( "---\r\n" );
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document.write( "A bracket next to an endpoint means that you include the endpoint.\r\n" );
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document.write( "A parentheses next to an endpoint means you do not include the endpoint.\r\n" );
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document.write( "--\r\n" );
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document.write( "Here are examples of other intervals:\r\n" );
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document.write( "----------⚪========================================⚫---------\r\n" );
document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "That is the graph of the interval (-4,10]\r\n" );
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document.write( "---\r\n" );
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document.write( "----------⚫========================================⚪---------\r\n" );
document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "That is the graph of the interval [-4,10)\r\n" );
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document.write( "---\r\n" );
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document.write( "----------⚪========================================⚪---------\r\n" );
document.write( "-7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12 13\r\n" );
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document.write( "That is the graph of the interval (-4,10)\r\n" );
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document.write( "If an endpoint is included, the interval is said to be CLOSED there.\r\n" );
document.write( "If an endpoint is not included, the interval is said to be OPEN there.\r\n" );
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document.write( "Edwin
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