document.write( "Question 1052422: The sets B and C are defined as follows...\r
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\n" ); document.write( "\n" ); document.write( "B = {v | v is less than or equal to 1}
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\n" ); document.write( "\n" ); document.write( "Write B∪C and B∩C using interval notation. If the set is empty, write ∅
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Algebra.Com's Answer #667783 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "B = {v | v is less than or equal to 1}\r\n" );
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document.write( "B has this number line graph:\r\n" );
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document.write( "<===============☻---------------------------------\r\n" );
document.write( "-4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12\r\n" );
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document.write( "C = {v | v is less than 9}\r\n" );
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document.write( "C has this number line graph:\r\n" );
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document.write( "<=======================================o---------\r\n" );
document.write( "-4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12\r\n" );
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document.write( "To find B∪C put them together and include everything\r\n" );
document.write( "that is in one set or the other or both:\r\n" );
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document.write( "<===============☻\r\n" );
document.write( "<=======================================o---------\r\n" );
document.write( "-4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12\r\n" );
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document.write( "All of B is included in C, so the answer is just the\r\n" );
document.write( "same as C, and the interval notation is\r\n" );
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document.write( "\"matrix%281%2C5%2C%22%28%22%2C-infinity%2C%22%2C%22%2C9%2C%22%29%22%29\"\r\n" );
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document.write( "Notice the parenthesis \")\" on the right because 9 is NOT\r\n" );
document.write( "included.]\r\n" );
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document.write( "To find B∩C put ONLY include everything\r\n" );
document.write( "that is in both sets:\r\n" );
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document.write( "<===============☻\r\n" );
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document.write( "-4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10 11 12\r\n" );
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document.write( "We cannot include the interval from 1 to 9 because it\r\n" );
document.write( "is not in BOTH sets.  All of C is included in B, so the \r\n" );
document.write( "answer is just the same as B, and the interval notation \r\n" );
document.write( "is:\r\n" );
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document.write( "\"matrix%281%2C5%2C%22%28%22%2C-infinity%2C%22%2C%22%2C1%2C%22%5D%22%29\"\r\n" );
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document.write( "Notice the bracket \"]\" on the right because 1 IS\r\n" );
document.write( "included.]\r\n" );
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document.write( "Edwin
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