document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=72487>Question 72487</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (x-1)^2 + (y-8)^2 = 16<BR>\n" );
document.write( "I've tried giving x a value and solving for y. Here is what I tried...<BR>\n" );
document.write( "(1-1)^2 + (y-8)^2 = 16<BR>\n" );
document.write( "0 + (y-8)^2 = 16<BR>\n" );
document.write( "(y-8)(y-8) = 16<BR>\n" );
document.write( "y^2 -8y -8y =64 = 16<BR>\n" );
document.write( "y^2 - 16y + 64 = 16<BR>\n" );
document.write( "y^2 - 8(y-y+8) = 16<BR>\n" );
document.write( "y^2 + 8 =2<BR>\n" );
document.write( "y^2 = 16<BR>\n" );
document.write( "y = 4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #51901 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=51901\">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=%28x-1%29%5E2+%2B+%28y-8%29%5E2+=+16 ALIGN=MIDDLE  ALT=\"%28x-1%29%5E2+%2B+%28y-8%29%5E2+=+16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Here's a point to the right direction.  Look in your textbook for the standard form of the<BR>\n" );
document.write( "equation of a circle.<BR>\n" );
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document.write( "The above problem is a circle whose center is found by getting its x and y values through solving<BR>\n" );
document.write( "the two equations x-1 = 0 and y - 8 = 0.<BR>\n" );
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document.write( "The radius of the circle is the square root of the right side.<BR>\n" );
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document.write( "In summary, the graph of this equation is a circle whose center is located located at (1,8) and<BR>\n" );
document.write( "whose radius is 4.<BR>\n" );
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document.write( "Hope this points you in a little better direction.  If you study how the equation for <BR>\n" );
document.write( "a circle is derived you will get a little better idea of how the above form comes about.<BR>\n" );
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document.write( "And don't feel too badly about this.  The only reason I saw the answer immediately<BR>\n" );
document.write( "was because the equation was written in a form that I recognized from a long time ago.<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );