document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042786>Question 1042786</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the vertex and axis of symmetry of the graph of the function.\r<BR>\n" );
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document.write( "f(x) = -3x2 - 6x - 2<BR>\n" );
document.write( "    a. (-1, 1) ; x = -1<BR>\n" );
document.write( "    b. (2, -26) ; x = 2<BR>\n" );
document.write( "    c. (1, -11) ; x = 1<BR>\n" );
document.write( "    d. (-2, -8) ; x = -2<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #657823 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=657823\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) = -3x^2 - 6x - 2<BR>\n" );
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document.write( "This is a parabola that curves downward<BR>\n" );
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document.write( "The x-coordinate of the parabola's vertex is given by<BR>\n" );
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document.write( "x = -b / (2a) = -(-6) / (2(-3) = -1<BR>\n" );
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document.write( "substitute -1 for x in f(x)<BR>\n" );
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document.write( "y = -3(-1)^2 - 6(-1) -2 = 1<BR>\n" );
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document.write( "answer is a)<BR>\n" );
document.write( "vertex is (-1,1) and axis  of symmetry is x = -1<BR>\n" );
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document.write( "Here is a graph of the parabola<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-3x%5E2+-+6x+-+2%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-3x%5E2+-+6x+-+2%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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