document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=213988>Question 213988</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I just recently have learned how to find the vertex of a function. However, with this problem, the fraction ... confused me. :)  I get half way through, then get entirely lost! \r<BR>\n" );
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document.write( "Determine the vertex of each function by completing the square.\r<BR>\n" );
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document.write( "y= 8x^2 + -14x + -72\r<BR>\n" );
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document.write( "Thanks!<BR>\n" );
document.write( "-B </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #161636 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=161636\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine the vertex of each function by completing the square. \r<BR>\n" );
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document.write( "y= 8x^2 + -14x + -72 <BR>\n" );
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document.write( "8x^2 - 14x = y + 72<BR>\n" );
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document.write( "8(x^2 - (7/4)x + ?) = y + 8?<BR>\n" );
document.write( "Complete the square:<BR>\n" );
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document.write( "8(x^2 - (7/4)x + (7/8)^2)) = y + 8(7/8)^2<BR>\n" );
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document.write( "8(x-(7/8))^2 = y + +8*(49/64)<BR>\n" );
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document.write( "8(x-(7/8))^2 = y + (49/8)<BR>\n" );
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document.write( "Vertex: ((7/8) , (-49/8))<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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