document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=137048>Question 137048</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780078738227/algebrahomeworkh>algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> i need the vertex of equation y equals -x^2+2x+3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #100293 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=100293\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> i need the vertex of equation y equals -x^2+2x+3<BR>\n" );
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document.write( "You have a quadratic with a=-1, b=2, and c = 3<BR>\n" );
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document.write( "The vertex occurs when x = -b/2a = -2/-2 = 1<BR>\n" );
document.write( "The corresponding y value is -(1^2)+2*1+3 = 4<BR>\n" );
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document.write( "Vertex: (1,4)<BR>\n" );
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document.write( "See it:<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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