document.write( "Question 1091607: Point M is the midpoint of AB. The coordinates of point A are (-8, 3) and the coordinates of M are (-2, 1). What are the coordinates of point B?\r
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Algebra.Com's Answer #706037 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "X-coordinate of the point B is the sum  Bx = Mx + (Mx - Ax) = -2 + (-2 - (-8)) = -2 + (-2 + 8) = -2 + 6 = 4.\r\n" );
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document.write( "y-coordinate of the point B is the sum  By = My + (My - Ay) = 1 + (1 - 3)     =  1 - 2 = -1.\r\n" );
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document.write( "Answer.  B = (4,-1).\r\n" );
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\n" ); document.write( "\n" ); document.write( "HINT. To make it clear, plot these points in a graph paper.\r
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