document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=992901>Question 992901</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -7x2 + 3x + 5. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #803743 by </B><A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><B>CubeyThePenguin(3113)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CubeyThePenguin><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=CubeyThePenguin><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=803743\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -7x^2 + 3x + 5\r<BR>\n" );
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document.write( "vertex at x = -b/2a = -3/(2 * -7) = 3/14\r<BR>\n" );
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document.write( "f(3/14) = 149/28\r<BR>\n" );
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document.write( "vertex: (3/14, 149/28) </SPAN>\n" );
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