document.write( "Question 192378: decide whether the sequence is arithmetic. explain why or why not.
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Algebra.Com's Answer #144421 by Edwin McCravy(20065) $\"\"$ $\"About$

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decide whether the sequence is arithmetic. explain why or why not.
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document.write( "To find out, \r\n" );
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document.write( "1. subtract 2nd term - 1st term. we get 11-14 or -3.\r\n" );
document.write( "2. subtract 3rd term - 2nd term. we get  8-11 or -3\r\n" );
document.write( "3. subtract 4th term - 3rd term. we get   5-8 or -3\r\n" );
document.write( "4. subtract 5th term - 4th term. we get   2-5 or -3\r\n" );
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document.write( "Since we got the same thing, -3, every time we subtracted\r\n" );
document.write( "a term from the next term, we know it is an arithmetic\r\n" );
document.write( "sequence with a common difference of -3.\r\n" );
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document.write( "Edwin

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