document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=800481>Question 800481</A>: <I><SPAN STYLE=\"word-break: break-all;\"> HOMEWORK DUE SOON!! PLEASE HELP!!\r<BR>\n" );
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document.write( "A circle with radius 2 touches the y-axis. If its centre lies on the line x + 2*y - 4 = 0 find its equation.\r<BR>\n" );
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document.write( "Please help me!!<BR>\n" );
document.write( "I understand what the question is asking but i have no idea how to do it!!<BR>\n" );
document.write( "Please help!!<BR>\n" );
document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #483098 by </B><A HREF=/tutors/aboutme.mpl?userid=oscargut><B>oscargut(2103)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oscargut><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=oscargut><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=483098\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If the circle has a radius of 2 and touches the y-axis then the center is O=(a,b) where a can be 2 or -2\r<BR>\n" );
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document.write( "If a = 2 since O is on the line x + 2*y - 4 = 0 \r<BR>\n" );
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document.write( "then  2+2y-4=0 then  2y = 2 then y = 1\r<BR>\n" );
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document.write( "Then O = (2,1)\r<BR>\n" );
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document.write( "If a = -2 since O is on the line x + 2*y - 4 = 0 \r<BR>\n" );
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document.write( "then  -2+2y-4=0 then  2y = 6 then y = 3\r<BR>\n" );
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document.write( "Then O = (-2,3)\r<BR>\n" );
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document.write( "So there are 2 posible equations:\r<BR>\n" );
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document.write( "Answer:   1 circle has center O = (2,1) and radius 2\r<BR>\n" );
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document.write( "and the other circle has center O = (-2,3) and radius 2\r<BR>\n" );
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document.write( "If you need more help with similar questions, homework, assignments, you can contact me now at:\r<BR>\n" );
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document.write( "mthman@gmail.com\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
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