document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=830372>Question 830372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do you find the vertext of y=(x-5)(x+1)? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #500554 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=500554\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do you find the vertext of y=(x-5)(x+1)?<BR>\n" );
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document.write( "You have zeros at x = -1 and at x = 5<BR>\n" );
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document.write( "The vertex must be half-way between the two:<BR>\n" );
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document.write( "Vertex occurs at (5+-1)/2 = 2<BR>\n" );
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document.write( "The y-value of the vertex is f(2) = (2-5)(2+1) = -3*3 = -9<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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