document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308795>Question 308795</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I used the formula (x-h)^2 +(y-k)^2=r^2 to determine the equation of the circle. I got c=(4,0)r=sqrt 13 (x-4)^2+(y-0)^2=(sqrt13)^2<BR>\n" );
document.write( "(x-4)^2=(y-0)^2 =13 but now I have to determine where the circle intersects the x-axis using a system of equations. Can you please show me how to do this. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220793 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=220793\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x-4)^2+(y-0)^2 =13 but now I have to determine where the circle intersects the x-axis using a system of equations. <BR>\n" );
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document.write( "Let y = 0; then solve for \"x\":<BR>\n" );
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document.write( "(x-4)^2 = 13<BR>\n" );
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document.write( "x-4 = +-sqrt(13)<BR>\n" );
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document.write( "x = 4+sqrt(13) or x = 4-sqrt(13)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
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