document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1081596>Question 1081596</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Is the squence geometric? If so identify the common ratio 2, -4, -16, -36, ... </SPAN>\n" );
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document.write( "Answer: Not geometric\r<BR>\n" );
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document.write( "We can determine this by dividing each term by its previous term.<BR>\n" );
document.write( "r = term2/term1 = -4/2 = -2<BR>\n" );
document.write( "r = term3/term2 = -16/(-4) = 4<BR>\n" );
document.write( "r = term4/term3 = -36/(-16) = 2.25<BR>\n" );
document.write( "Technically we only need to do two calculations, but it doesn't hurt to show all three.<BR>\n" );
document.write( "The results don't match up, so we don't have a geometric sequence.<BR>\n" );
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