document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=183340>Question 183340</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I totally don't understand how to start with this exercise. \r<BR>\n" );
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document.write( "I am supposed to find the center and radius of a circle that is represented in this equation...\r<BR>\n" );
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document.write( "(x-9)^2 + (y+1)^2 = 49 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #137655 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=137655\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First thing you need to do is review the formula for a circle.<BR>\n" );
document.write( "See this URL --> http://www.mathwarehouse.com/geometry/circle/equation-of-a-circle.php\r<BR>\n" );
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document.write( "Once you have read that, the equation you were given is in that form already.<BR>\n" );
document.write( "So you just need to \"pick the center and radius' directly from the equation\r<BR>\n" );
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document.write( "Center (H,K) = (9,-1)<BR>\n" );
document.write( "radius r^2 = 49 so r = 7 </SPAN>\n" );
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