document.write( "Question 332502: Point M is the midpoint of line AB. Given A(-1,5), M (3, j) and B(k,-1) find j=___
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Algebra.Com's Answer #238260 by AAfter.Com(18) $\"\"$ $\"About$

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M is the mid-point of line AB.
\n" ); document.write( "Therefore, (-1 + k)/2 = 3 => k = 7
\n" ); document.write( "j = (5 - 1)/2 => j = 2
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