document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=360649>Question 360649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many times does the parabola y=4x^2-12x+9 intersect the x-axis?<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 #257371 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=257371\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many times does the parabola <BR>\n" );
document.write( "y=4x^2-12x+9 intersect the x-axis?<BR>\n" );
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document.write( "Check the determinant.<BR>\n" );
document.write( "b^2-4ac = 12^2-4*4*9 = 0<BR>\n" );
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document.write( "The parabola touches the x-axis at x = -b/2a = 1.5<BR>\n" );
document.write( "but does not pass thru it.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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