document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1124567>Question 1124567</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the equation of tangent line at the point (2,1) on the circle 2x^2+2y^2=5x. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #740877 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=740877\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the equation of tangent line at the point (2,1) on the circle 2x^2+2y^2=5x.<BR>\n" );
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document.write( "Find the slope at (2,1)<BR>\n" );
document.write( "2x^2+2y^2=5x<BR>\n" );
document.write( "4x*dx + 4y*dy = 5dx<BR>\n" );
document.write( "(4x-5)*dx = -4y*dy<BR>\n" );
document.write( "dy/dx = -(4x-5)/4y<BR>\n" );
document.write( "@(2,1) dy/dx = -3/4<BR>\n" );
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document.write( "y-1 = -(3/4)*(x-2)<BR>\n" );
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document.write( "If you want to do it without calculus email via the TY note, or post it again and ask for an algebraic solution.<BR>\n" );
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