document.write( "Question 448008: Is the following sequence arithemtic? if,so idenitfy the common difference of -16,-22,-29,-37 \n" ); document.write( "

Algebra.Com's Answer #308357 by Edwin McCravy(20056) $\"\"$ $\"About$

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-16,-22,-29,-37
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document.write( "Let's find out if it's an arithmetic sequence:\r\n" );
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document.write( "2nd term - 1st term = (-22) - (-16) = -22+16 = -6\r\n" );
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document.write( "3rd term - 2nd term = (-29) - (-22) = -29+22 = -7\r\n" );
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document.write( "No, it's not because we didn't get the same thing\r\n" );
document.write( "for both of those subtractions.\r\n" );
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document.write( "If it had been an arithmetic sequence those would \r\n" );
document.write( "have had to be the same common difference and also\r\n" );
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document.write( "4th term - 3rd term = (-37) - (-29) = -37+29 = -8\r\n" );
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document.write( "would have had to have been the same common\r\n" );
document.write( "difference.  So this is not an arithmetic sequence.\r\n" );
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document.write( "Edwin

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