document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=42415>Question 42415</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the polar form of the rectangular equation x^2 = 8y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #27585 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=27585\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since x = r cos(q) and y = r sin(q), we substitute into x^2 = 8y and get<BR>\n" );
document.write( "r^2 cos^2 (q) = 8r sin (q)<BR>\n" );
document.write( "r cos^2 (q) = 8 sin (q)<BR>\n" );
document.write( "r = 8 sec (q) tan (q) ... after dividing by cos^2 (q)...<BR>\n" );
document.write( "where q is theta... </SPAN>\n" );
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