document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1085762>Question 1085762</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the equation of this line?\r<BR>\n" );
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document.write( "question: find the equations of the line described.<BR>\n" );
document.write( "tangent lines to x²+y²-18x-2y+48=0 at points where x=4\r<BR>\n" );
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document.write( "im solving it using x²+y²-18y-2y+48=0<BR>\n" );
document.write( "at x=4\r<BR>\n" );
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document.write( "my solution (trying)\r<BR>\n" );
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document.write( "P(4,y)\r<BR>\n" );
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document.write( "(4)²+y²-18(4)-2y+48=0<BR>\n" );
document.write( "16+y²-72-2y+48=0<BR>\n" );
document.write( "=y²+2y<BR>\n" );
document.write( "=y(y+2)=0<BR>\n" );
document.write( "y=0 | y+2=0 y=-2\r<BR>\n" );
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document.write( "is it right? \r<BR>\n" );
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document.write( "P(4,0) Q(4,-2) is it right?\r<BR>\n" );
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document.write( "x²+y²-18x-2y+48=0<BR>\n" );
document.write( "(x²-18x)+(y²-2y)= -48 \r<BR>\n" );
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document.write( "is it right? now i dont know whats next. please correct me if im wrong.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #699852 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=699852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%5E2-18%284%29%2By%5E2-2y%2B48=0 ALIGN=MIDDLE  ALT=\"4%5E2-18%284%29%2By%5E2-2y%2B48=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16-72%2By%5E2-2y%2B48=0 ALIGN=MIDDLE  ALT=\"16-72%2By%5E2-2y%2B48=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%5E2-2y-8=0 ALIGN=MIDDLE  ALT=\"y%5E2-2y-8=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > <--- Addition error on the constant<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y-4%29%28y%2B2%29=0 ALIGN=MIDDLE  ALT=\"%28y-4%29%28y%2B2%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=4 ALIGN=MIDDLE  ALT=\"y=4\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-2 ALIGN=MIDDLE  ALT=\"y=-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=Fombitz&illustration_name=lp3.JPG\">.\r<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );