document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1141695>Question 1141695</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The diagonals of rectangle ABCD intersect at the point (-4,2) in the standard (x,y) coordinate plane. Point D is at (-1,-1). Which of the following are the coordinates of point B?\r<BR>\n" );
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document.write( "The following diagram: https://i.imgur.com/sHXMBGp.png </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #762298 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=762298\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "The diagonals of a rectangle bisect each other, so the intersection point (-4,2) is the midpoint of BD.  Find the coordinates of B (the other end of BD) knowing that the midpoint is (-4,2) and D is (-1,-1).<br><BR>\n" );
document.write( "One easy way to do that is to look at how far you go in the x- and y-directions from the midpoint to the given point D, then start at the midpoint and go the opposites of those distances in the two directions to find B.<br><BR>\n" );
document.write( "Making a rough plot of the points can help find the answer, and/or to see that the answer you come up with is reasonable. </SPAN>\n" );
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