document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=280228>Question 280228</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For each quadratic function (a) find the vertex and the axis of symmetry and (b) graph the function.<BR>\n" );
document.write( "g(x)=x^2+5x+4.<BR>\n" );
document.write( "a=1, b=5 and c=4\r<BR>\n" );
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document.write( "I started doing the problem and here is what I have so far.\r<BR>\n" );
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document.write( "x = -b/2*a<BR>\n" );
document.write( "x= -5/2*1 = -5/2 or -2.5 \r<BR>\n" );
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document.write( "g(1)= 1*(1)^2 + 5(1) + 4<BR>\n" );
document.write( "g(1)=1 + 5 +4\r<BR>\n" );
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document.write( "So the vertex is (-2.5, 10).\r<BR>\n" );
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document.write( "Now I am confuse on how to get the axis of symmetry.<BR>\n" );
document.write( "g(1)= 10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #203671 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=203671\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For each quadratic function (a) find the vertex and the axis of symmetry and (b) graph the function.<BR>\n" );
document.write( "g(x)=x^2+5x+4.<BR>\n" );
document.write( "a=1, b=5 and c=4 <BR>\n" );
document.write( "I started doing the problem and here is what I have so far. <BR>\n" );
document.write( "x = -b/2*a<BR>\n" );
document.write( "x= -5/2*1 = -5/2 or -2.5<BR>\n" );
document.write( "That is the x-coordinate of the vertex.<BR>\n" );
document.write( "Now find the y-coordinate: <BR>\n" );
document.write( "g(-2.5)= 1*(-2.5)^2 + 5(-2.5) + 4<BR>\n" );
document.write( "g(-2.5)= -2.25 <BR>\n" );
document.write( "So the vertex is (-2.5,-2.25). <BR>\n" );
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document.write( "The axis of symmetry passes thru the vertex.<BR>\n" );
document.write( "The parabola opens up so the axis is a vertical line.<BR>\n" );
document.write( "So, the equation of the axis must be x=-2.5<BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Let's see:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B5x%2B4%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B5x%2B4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "===============================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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