document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=67873>Question 67873</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For what values of K is y=k a tangent to the circle  (x-1)^2+(y+4)^2=25? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #48252 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=48252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For what values of K is y=k a tangent to the circle  (x-1)^2+(y+4)^2=25?<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "The equation is that of a circle with center at (1,-4) and radius 5<BR>\n" );
document.write( "Draw the picture.<BR>\n" );
document.write( "The line you are looking for is parallel to the x-axis and intersects<BR>\n" );
document.write( "the circle at its topmost point and its bottommost point.<BR>\n" );
document.write( "Topmost is (1,-4+5)=(1,1)<BR>\n" );
document.write( "The line would be y=1; k=1<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Bottommost is (1,-4-5)=(1,-9)<BR>\n" );
document.write( "The line would be y=-9; k=-9<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );