document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309265>Question 309265</A>: <I><SPAN STYLE=\"word-break: break-all;\"> nathan drew a circle on a grid with a radius of 4 units and the points 2,-1 as its center. What are the pairs of coordinates represented points on the circle </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #221172 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=221172\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> nathan drew a circle on a grid with a radius of 4 units and the points 2,-1 as its center. What are the pairs of coordinates represented points on the circle<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "(x-2)^2 + (y+1)^2 = 16<BR>\n" );
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document.write( "Find the x and the y intercept:<BR>\n" );
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document.write( "Let x = 0,<BR>\n" );
document.write( "then 4 + (y+1)^2 = 16<BR>\n" );
document.write( "(y+1)^2= 12<BR>\n" );
document.write( "y+1 = +-2sqrt(3)<BR>\n" );
document.write( "y = -1+-2sqrt(3)<BR>\n" );
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document.write( "Let y = 0<BR>\n" );
document.write( "then (x-2)^2 + 1 = 16<BR>\n" );
document.write( "(x-2)^2 = 15<BR>\n" );
document.write( "x-2 = +-sqrt(15)<BR>\n" );
document.write( "x = 2+-sqrt(15)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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