document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1080053>Question 1080053</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Write the equation in polar coordinates. Then isolate the variable r when possible.<BR>\n" );
document.write( "x2 + y2 = 8x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #694292 by </B><A HREF=/tutors/aboutme.mpl?userid=rapture><B>rapture(86)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapture><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/cgi-bin/show-face.mpl?user=rapture><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=694292\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x^2 + y^2 = r^2\r<BR>\n" );
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document.write( "Let x = rcos&#952;\r<BR>\n" );
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document.write( "x^2 + y^2 = 8x\r<BR>\n" );
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document.write( "r^2 = 8rcos&#952;\r<BR>\n" );
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document.write( "Divide both sides by r. This will isolate r.\r<BR>\n" );
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document.write( "(r^2)/r = (8rcos&#952;)/r\r<BR>\n" );
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document.write( "r = 8cos&#952;\r<BR>\n" );
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document.write( " </SPAN>\n" );
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