document.write( "Question 845290: Wich sequence follows the rule 3n-2,where n represents the position of a term in the sequence?\r
\n" ); document.write( "\n" ); document.write( "A. 21,18,15,12,9,...
\n" ); document.write( "B. 3,6,9,12,15,...
\n" ); document.write( "C.1,7,10,13,16,...
\n" ); document.write( "D. 1,4,7,10,13,... \n" ); document.write( "
Algebra.Com's Answer #509231 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "To get term #1, plug in a 1 for n in the rule 3n-2\r\n" );
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document.write( " 3n-2\r\n" );
document.write( "3(1)-2\r\n" );
document.write( "  3-2\r\n" );
document.write( "   1\r\n" );
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document.write( "So the answer can't be A or B because neither of those\r\n" );
document.write( "begins with 1.  So the answer is either C or D.\r\n" );
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document.write( "To get term #2, plug in a 2 for n in the rule 3n-2\r\n" );
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document.write( " 3n-2\r\n" );
document.write( "3(2)-2\r\n" );
document.write( "  6-2\r\n" );
document.write( "   4\r\n" );
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document.write( "So the answer is D.\r\n" );
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document.write( "But as a check, let's show that we get all \r\n" );
document.write( "the other numbers of D.\r\n" );
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document.write( "To get term #3, plug in a 3 for n in the rule 3n-2\r\n" );
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document.write( " 3n-2\r\n" );
document.write( "3(3)-2\r\n" );
document.write( "  9-2\r\n" );
document.write( "   7\r\n" );
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document.write( "The next term of D is 7.\r\n" );
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document.write( "To get term #4, plug in a 4 for n in the rule 3n-2\r\n" );
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document.write( " 3n-2\r\n" );
document.write( "3(4)-2\r\n" );
document.write( " 12-2\r\n" );
document.write( "  10\r\n" );
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document.write( "The next term of D is 10.\r\n" );
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document.write( "To get term #5, plug in a 5 for n in the rule 3n-2\r\n" );
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document.write( " 3n-2\r\n" );
document.write( "3(5)-2\r\n" );
document.write( " 15-2\r\n" );
document.write( "  13\r\n" );
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document.write( "The next term of D is 13.\r\n" );
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document.write( "So we have proved that D is the only possible answer.\r\n" );
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document.write( "Edwin
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