document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218343>Question 218343</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the coordinates of the vertex and the equation of the axis of symmerty for the parabola with the equation 2x^2 + 2x - y = -3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164449 by </B><A HREF=/tutors/aboutme.mpl?userid=RAY100><B>RAY100(1637)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RAY100><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=164449\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x^2 +2x =y-3<BR>\n" );
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document.write( "2(x^2 +x ) =y-3,,,,factor  out  2<BR>\n" );
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document.write( "2(x^2 +x +1/4) =y-3+2(1/4),,,,,complete  square  and  add  compensating to  rt  side<BR>\n" );
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document.write( "2(x+1/2)^2 = y-2.5<BR>\n" );
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document.write( "Remember  the  std  form  of  a  parabola  is  (y-k) = A(x-h)^2,,,,with(h,k) as  vertex<BR>\n" );
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document.write( "Vertex  in  this  case  is,,,,(-1/2, 2.5)<BR>\n" );
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document.write( "line  of  symmetry  is  at ,,,,x=-1/2<BR>\n" );
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document.write( "A is  positive ,,,(+2),,,therefore y  parabola  pointing  up<BR>\n" );
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