document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151887>Question 151887</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could I please get someone to varify my answer?<BR>\n" );
document.write( "SUM8(-0.5i+2)<BR>\n" );
document.write( "i=1\r<BR>\n" );
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document.write( "After coming up with the equation 8/2(2+(-2)), I got (0) as my answer.  Is this correct? Sorry about the equation, I was not sure how to type it all and I hope you can figure it out. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111676 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=111676\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-.5sum%28+i%2C+1%2C+8+%29%2B2%29 ALIGN=MIDDLE  ALT=\"-.5sum%28+i%2C+1%2C+8+%29%2B2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Is this the correct problem?\r<BR>\n" );
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document.write( "The solution will not be 0, however.\r<BR>\n" );
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document.write( "I will iterate first:\r<BR>\n" );
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document.write( "-.5+2-1+2-1.5+2-2+2-2.5+2-3+2-3.5+2-4+2=-2.\r<BR>\n" );
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document.write( "Now, formula-wise, remove the constant 2 by properties of summation notation to make it +8*2=+16.\r<BR>\n" );
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document.write( "Further, the sum from 1 to n of i is given by n(n+1)/2.<BR>\n" );
document.write( "So if n=8,\r<BR>\n" );
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document.write( "8(9)/2=36. Now, that is modified by -.5. So -18 is our remaining summation.\r<BR>\n" );
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document.write( "-18+16=-2.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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