document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=906413>Question 906413</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let f (x) =  x^2  +  4x  -  7 <BR>\n" );
document.write( "(a) Find the coordinates of the vertex.<BR>\n" );
document.write( "(x, y) = ___ \r<BR>\n" );
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document.write( "(b) The [Either max/min] value of f is <BR>\n" );
document.write( "f ( __ ) = __ \r<BR>\n" );
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document.write( "(c) Find the domain and range of f\r<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 #549811 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=549811\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let f (x) =  x^2  +  4x  -  7 <BR>\n" );
document.write( "(a) Find the coordinates of the vertex.<BR>\n" );
document.write( "(x, y) =  <BR>\n" );
document.write( "x = -b/(2a) = -4/(2*1) = -2<BR>\n" );
document.write( "y = (-2)^2 + 4*-2 -7 = -11<BR>\n" );
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document.write( "(x,y) = (-2,-11)<BR>\n" );
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document.write( "(b) The [Either max/min] value of f is <BR>\n" );
document.write( "f (-2)) = -11<BR>\n" );
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document.write( "(c) Find the domain and range of f<BR>\n" );
document.write( "Domain:: All Real Numbers<BR>\n" );
document.write( "Range:: y >= -11<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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