document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=748033>Question 748033</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( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%28x%29=x%5E2%2B7x ALIGN=MIDDLE  ALT=\"h%28x%29=x%5E2%2B7x\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455318 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=455318\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Not even need to put into standard form.  Just factor.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B7x=x%28x%2B7%29 ALIGN=MIDDLE  ALT=\"x%5E2%2B7x=x%28x%2B7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >,\r<BR>\n" );
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document.write( "set to the equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%28x%2B7%29=0 ALIGN=MIDDLE  ALT=\"x%28x%2B7%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then roots are at 0 and -7.  Axis of symmetry is x exactly in the middle, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-3%261%2F2 ALIGN=MIDDLE  ALT=\"x=-3%261%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Calculate what is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%28-3%261%2F2%29 ALIGN=MIDDLE  ALT=\"h%28-3%261%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get the vertex, which will be a minimum point.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-10%2C5%2C-14%2C1%2Cx%5E2%2B7x%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C5%2C-14%2C1%2Cx%5E2%2B7x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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