document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1039286>Question 1039286</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A quadratic function is given.<BR>\n" );
document.write( "f(x) = 1 + x &#8722; sqrt of 2(x^2)\r<BR>\n" );
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document.write( "a) Use a graphing device to find the maximum value of the quadratic function f, rounded to two decimal places.\r<BR>\n" );
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document.write( "Correct: value of f is f(x) = 1.18\r<BR>\n" );
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document.write( "I am just not sure how to find the exact maximum value of f, in order to compare it with part (a). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #654041 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=654041\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A quadratic function is given.<BR>\n" );
document.write( "f(x) = 1 + x &#8722; sqrt of 2(x^2) <BR>\n" );
document.write( "a) Use a graphing device to find the maximum value of the quadratic function f, rounded to two decimal places.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C400%2C-5%2C5%2C-5%2C5%2C1%2Bx-sqrt%282%29x%5E2%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C400%2C-5%2C5%2C-5%2C5%2C1%2Bx-sqrt%282%29x%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Max occurs at x = -b/(2a) = -1/(2sqrt(2)) = 0.3536..<BR>\n" );
document.write( "f(0.3536) = 1.177<BR>\n" );
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document.write( "Max is (0.3536,1.177)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "--------------- <BR>\n" );
document.write( "Correct: value of f is f(x) = 1.18  </SPAN>\n" );
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