document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308022>Question 308022</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the maximum or minimum value of the quardratic function ?\r<BR>\n" );
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document.write( "f(x)=3x^2+12x+8\r<BR>\n" );
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document.write( "a. -28\r<BR>\n" );
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document.write( "b. -4\r<BR>\n" );
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document.write( "c. -2\r<BR>\n" );
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document.write( "d. 44\r<BR>\n" );
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document.write( "tthanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220265 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220265\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The maximum or minimum of a quadratic function occurs when x=-b/2a.\r<BR>\n" );
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document.write( "In this case, a=3, b=12, so x=-12/6=-2.\r<BR>\n" );
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document.write( "f(-2)=3(-2)^2+12(-2)+8<BR>\n" );
document.write( "f(-2)=3*4+(-24)+8<BR>\n" );
document.write( "f(-2)=12+(-16)=-4 = minimum value of f(x).\r<BR>\n" );
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document.write( "Are graphing calculators allowed???\r<BR>\n" );
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document.write( "Dr. Robert J. Rapalje, Retired\r<BR>\n" );
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document.write( " </SPAN>\n" );
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