document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=157235>Question 157235</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Calculate the value of the discriminant of x^2+4x+4=0 ,By examining the sign of the discriminant in part a, how many x-intercepts would the graph of y=x^2+4x=4 have? Why? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115907 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=115907\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Discriminant is: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28+b%5E2-4%2Aa%2Ac+%29+ ALIGN=MIDDLE  ALT=\"sqrt%28+b%5E2-4%2Aa%2Ac+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "for ax^2+bx+c=0\r<BR>\n" );
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document.write( "So,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28+16-16+%29+ ALIGN=MIDDLE  ALT=\"sqrt%28+16-16+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > =0\r<BR>\n" );
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document.write( "This means there will be one zero (x intercept). This is because the +/- has to relevance with a zero root. </SPAN>\n" );
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