document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=780806>Question 780806</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you help me figure out this problem please? <BR>\n" );
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document.write( "Find the distance between the points of intersection of the graphs<BR>\n" );
document.write( "y = x^2 + 5 and y = 21\r<BR>\n" );
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document.write( "Thank you!\r<BR>\n" );
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document.write( "-Tiffany </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475695 by </B><A HREF=/tutors/aboutme.mpl?userid=fcabanski><B>fcabanski(1391)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fcabanski><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=475695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The first graph is a parabola.  What is its x value when y = 21?  That's where it intersects the line y=21.<P><BR>\n" );
document.write( "21 = x^2 +5<P><BR>\n" );
document.write( "16 = x^2 so x = + or - 4.<P><BR>\n" );
document.write( "The points of intersection are (-4, 21) and (4, 21)<P><BR>\n" );
document.write( "The distance between the two points is 8 units. </SPAN>\n" );
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