document.write( "Question 1048718: What's the other endpoint of the segment with the given endpoint and midpoint?
\n" ); document.write( "Endpoint: (-9,-1/2) Midpoint: (6,-3 1/2) \n" ); document.write( "

Algebra.Com's Answer #664316 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let ( x,y ) = the unknown endpoint
\n" ); document.write( " $\"+%28+x+%2B%28-9%29+%29+%2F+2+=+6+\"$
\n" ); document.write( " $\"+%28+x+-+9+%29%2F2+=+6+\"$
\n" ); document.write( " $\"+x+-+9+=+12+\"$
\n" ); document.write( " $\"+x+=+21+\"$ ( x-coordinate )
\n" ); document.write( "---------------------------
\n" ); document.write( " $\"+%28+y+%2B+%28-1%2F2+%29%29+%2F+2+=+-3.5+\"$
\n" ); document.write( " $\"+%28+y+-+1%2F2+%29+%2F+2+=+-3.5+\"$
\n" ); document.write( " $\"+y+-+1%2F2+=+-7+\"$
\n" ); document.write( " $\"+y+=+-6.5+\"$ ( y-coordinate )
\n" ); document.write( "---------------------------
\n" ); document.write( "The endpoint is ( 21, -6.5 )\r
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