document.write( "Question 840950: the midpoint of kl is m (5,-7).one endpoint is k (9,-7)find the coordinates of the other endpoint l \n" ); document.write( "

Algebra.Com's Answer #506521 by Fombitz(32388) $\"\"$ $\"About$

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Midpoints are averages of x and y values.
\n" ); document.write( " $\"x%5Bm%5D=%28x%5B1%5D%2Bx%5B2%5D%29%2F2=5\"$
\n" ); document.write( " $\"%289%2Bx%5B2%5D%29%2F2=5\"$
\n" ); document.write( " $\"9%2Bx%5B2%5D=10\"$
\n" ); document.write( " $\"x%5B2%5D=1\"$
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\n" ); document.write( " $\"y%5Bm%5D=%28y%5B1%5D%2By%5B2%5D%29%2F2=-7\"$
\n" ); document.write( " $\"%28-7%2By%5B2%5D%29%2F2=-7\"$
\n" ); document.write( " $\"-7%2By%5B2%5D=-14\"$
\n" ); document.write( " $\"y%5B2%5D=-7\"$
\n" ); document.write( "The other point is (1,-7).
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