document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=333450>Question 333450</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The graph of y=-11x^2+154x-535 is a parabola that opens in the direction____. It has vertex____, y-intercept___, and real roots.<BR>\n" );
document.write( "1. up,(7,4), 154,2<BR>\n" );
document.write( "2. down,(7,4),-535,2<BR>\n" );
document.write( "3. down,(7,4),-535,1<BR>\n" );
document.write( "4. down,(-7,4),154,1<BR>\n" );
document.write( "5.None of the above </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #238948 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=238948\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The graph of y=-11x^2+154x-535 is <BR>\n" );
document.write( "a parabola that opens in the direction down_. <BR>\n" );
document.write( "It has vertex ?,<BR>\n" );
document.write( "vertex at x = -b/2a = -154/(2*-11) = 7<BR>\n" );
document.write( "f(7) = 4<BR>\n" );
document.write( "So, vertex at (7,4)<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "y-intercept ?,<BR>\n" );
document.write( "y-intercept = -535<BR>\n" );
document.write( "------------------------ <BR>\n" );
document.write( "and real roots, ?<BR>\n" );
document.write( "b^2-4ac = 154^2-4*-11*-535 = 176<BR>\n" );
document.write( "Since the discriminant is positive<BR>\n" );
document.write( "there are 2 Real Number roots.<BR>\n" );
document.write( "=====================================<BR>\n" );
document.write( "1. up,(7,4), 154,2<BR>\n" );
document.write( "2. down,(7,4),-535,2<BR>\n" );
document.write( "3. down,(7,4),-535,1<BR>\n" );
document.write( "4. down,(-7,4),154,1<BR>\n" );
document.write( "5.None of the above<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );