document.write( "Question 1171714: what is the coordinates of the midpoint for line segment JK if J(-9, 5) and K(21, -7) \n" ); document.write( "
Algebra.Com's Answer #796626 by Boreal(15235)\"\" \"About 
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take the average of the two x values and the two y values.
\n" ); document.write( "add the x values -9 and 21 to get 12. Divide by 2 to get 6. That is the x-coordinate of the midpoint.
\n" ); document.write( "the y adds to -2 and half of that is -1.
\n" ); document.write( "The answer is (6, -1).
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