document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=59085>Question 59085</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (2)  Given f(x) = 3xsquared - 5x, \r<BR>\n" );
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document.write( "(a) Find f(-4)\r<BR>\n" );
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document.write( "(b) Find x if f(x) = 0\r<BR>\n" );
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document.write( "(3) Let g(x) = -3(x + 72)squared + 108\r<BR>\n" );
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document.write( "(a) Find the zeros of g(x).\r<BR>\n" );
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document.write( "(b) Identify the axis of symmetry for the graph of g.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #40520 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=40520\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (2)  Given <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=3x%5E2-5x ALIGN=MIDDLE  ALT=\"f%28x%29=3x%5E2-5x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <BR>\n" );
document.write( ":<BR>\n" );
document.write( "(a) Find f(-4)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-4%29=3%28-4%29%5E2-5%28-4%29 ALIGN=MIDDLE  ALT=\"f%28-4%29=3%28-4%29%5E2-5%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-4%29=3%2816%29%2B20 ALIGN=MIDDLE  ALT=\"f%28-4%29=3%2816%29%2B20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28-4%29=48%2B20 ALIGN=MIDDLE  ALT=\"f%28-4%29=48%2B20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28f%28-4%29=68%29 ALIGN=MIDDLE  ALT=\"highlight%28f%28-4%29=68%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "(b) Find x if f(x) = 0<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=3x%5E2-5x ALIGN=MIDDLE  ALT=\"0=3x%5E2-5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=x%283x-5%29 ALIGN=MIDDLE  ALT=\"0=x%283x-5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x-5=0 ALIGN=MIDDLE  ALT=\"3x-5=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x-5%2B5=0%2B5 ALIGN=MIDDLE  ALT=\"3x-5%2B5=0%2B5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x=5 ALIGN=MIDDLE  ALT=\"3x=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0 ALIGN=MIDDLE  ALT=\"x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2F3=5%2F3 ALIGN=MIDDLE  ALT=\"3x%2F3=5%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=0%29 ALIGN=MIDDLE  ALT=\"highlight%28x=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=5%2F3%29 ALIGN=MIDDLE  ALT=\"highlight%28x=5%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "(3) Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=g%28x%29=-3%28x%2B72%29%5E2%2B108 ALIGN=MIDDLE  ALT=\"g%28x%29=-3%28x%2B72%29%5E2%2B108\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "(a) Find the zeros of g(x).<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0=-3%28x%2B72%29%5E2%2B108 ALIGN=MIDDLE  ALT=\"0=-3%28x%2B72%29%5E2%2B108\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-108=-3%28x%2B72%29%5E2%2B108-108 ALIGN=MIDDLE  ALT=\"-108=-3%28x%2B72%29%5E2%2B108-108\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-108=-3%28x%2B72%29%5E2 ALIGN=MIDDLE  ALT=\"-108=-3%28x%2B72%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-108%2F-3=%28x%2B72%29%5E2 ALIGN=MIDDLE  ALT=\"-108%2F-3=%28x%2B72%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=36=%28x%2B72%29%5E2 ALIGN=MIDDLE  ALT=\"36=%28x%2B72%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "+\-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2836%29=sqrt%28%28x%2B72%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%2836%29=sqrt%28%28x%2B72%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "+\-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6=x%2B72 ALIGN=MIDDLE  ALT=\"6=x%2B72\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-72+\-6=x+72-72<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-72-6 ALIGN=MIDDLE  ALT=\"x=-72-6\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-72%2B6 ALIGN=MIDDLE  ALT=\"x=-72%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=-78%29 ALIGN=MIDDLE  ALT=\"highlight%28x=-78%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=-66%29 ALIGN=MIDDLE  ALT=\"highlight%28x=-66%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "(b) Identify the axis of symmetry for the graph of g.<BR>\n" );
document.write( "g(x) is in vertex form:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28g%28x%29=a%28x-h%29%5E2%2Bk%29 ALIGN=MIDDLE  ALT=\"highlight%28g%28x%29=a%28x-h%29%5E2%2Bk%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, the axis of symmetry is x=h.  In your case h=-72, so the axis of symmetry is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=-72%29 ALIGN=MIDDLE  ALT=\"highlight%28x=-72%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Happy Calculating!!!  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );