Question 431339
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how do u find the midpoint of the line segment of (10,-10),(9,-9)?
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        In this my post,  I fix the errors in the post by @mananth.



<pre>
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 														

        (10,-10),  (9,-9)   					

    M = {{{(x1+x2)/2}}}, {{{(y1+y2)/2}}}							

    x = (10+9)/2,  y = (-10+(-9))/2	

    x =   9.5,	   y =	-9.5										

<U>ANSWER</U>.  The midpoint is (9.5,-9.5).
</pre>

Solved correctly.