document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=612594>Question 612594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> given A(-2,1)and B(8,5) the end points of the diameter of the circle<BR>\n" );
document.write( "a) what are the coordinates of the center W of the circle?<BR>\n" );
document.write( "b) what is the radius of this circle  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #385613 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=385613\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The center is the mid point <BR>\n" );
document.write( " If the coordinates of A and B are ( x1, y1) and ( x2, y2) respectively, then the midpoint, M, of AB is given by the following formula																						<BR>\n" );
document.write( "(-2,1)(8,5)   													<BR>\n" );
document.write( "M(x,y) =<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x1%2Bx2%29%2F2 ALIGN=MIDDLE  ALT=\"%28x1%2Bx2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28y1%2By2%29%2F2 ALIGN=MIDDLE  ALT=\"%28y1%2By2%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >															<BR>\n" );
document.write( "x=	(-2+8)/	2y=(1+	5	)/	2									<BR>\n" );
document.write( "x=	3		,y=	3																		<BR>\n" );
document.write( "(	3	,	3	)  	\r<BR>\n" );
document.write( "\n" );
document.write( "Radius is the distance from center to one of the endponts of the diameter .<BR>\n" );
document.write( "Distance between two points													<BR>\n" );
document.write( "x1	y1	x2	y2										<BR>\n" );
document.write( "													<BR>\n" );
document.write( "(3	3)	(8	5)										<BR>\n" );
document.write( "d=	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%28y2-y1%29%5E2%2B%28x2-x1%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%28y2-y1%29%5E2%2B%28x2-x1%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >												<BR>\n" );
document.write( "d=	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%285-3%29%5E2%09%2B%288-3%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%285-3%29%5E2%09%2B%288-3%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d=	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%282%29%5E2%2B%285%29%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28%282%29%5E2%2B%285%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >				<BR>\n" );
document.write( "d=	<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28%2829%29%29 ALIGN=MIDDLE  ALT=\"sqrt%28%2829%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >								<BR>\n" );
document.write( "d=	5.39												<BR>\n" );
document.write( "m.ananth@hotmail.ca													<BR>\n" );
document.write( "																	<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );