document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308363>Question 308363</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Consider the equation f(x)=x^2+6x+4<BR>\n" );
document.write( "Find the x-intercepts by completing the square.<BR>\n" );
document.write( "Find the vertex<BR>\n" );
document.write( "Find the axis of symmetry\r<BR>\n" );
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document.write( "I tried working out this problem 3 times and i can not solve it. My teacher said that when i find the x-intercepts that i should leave my answer in square roots rather than the decimal approximations. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220475 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220475\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-intercepts are when f(x)=0\r<BR>\n" );
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document.write( "0 = x^2 + 6x + 4\r<BR>\n" );
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document.write( "c term should be 9 for a perfect square (half of the b coefficient, squared)\r<BR>\n" );
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document.write( "adding 5 ___ 5 = x^2 + 6x + 9 = (x + 3)^2\r<BR>\n" );
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document.write( "taking square root ___ ±&#8730;5 = x + 3 ___ -3±&#8730;5 = x\r<BR>\n" );
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document.write( "axis of symmetry ___ x = -b / (2a) ___ x = -3\r<BR>\n" );
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document.write( "vertex is on the axis of symmetry ___ f(-3) = (-3)^2 + 6(-3) + 4 = -5\r<BR>\n" );
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document.write( "vertex ___ (-3, -5) </SPAN>\n" );
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