document.write( "Question 487899: find the coordinates of the missing endpoint if B is the Midpoint of line segment AC.
\n" ); document.write( "C(0,0) , B(5.-6)\r
\n" ); document.write( "\n" ); document.write( "I don't need you to work this problem, I just need to know how to do it. I will be cheating if you just tell me the answer.
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Algebra.Com's Answer #333187 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
B(5,-6) has the form B(x,y)
\n" ); document.write( "Call the other endpoint A(x,y)
\n" ); document.write( "given:
\n" ); document.write( "\"+%28+x+-+0%29%2F2+=+5+\"
\n" ); document.write( "\"+x+=+10+\"
\n" ); document.write( "and
\n" ); document.write( "\"+%28y+-+0%29+%2F+2+=+-6+\"
\n" ); document.write( "\"+y+=+-12+\"
\n" ); document.write( "the other endpoint is A(10,-12)
\n" ); document.write( "I am just finding the midpoints
\n" ); document.write( "along the x-axis and then the y-axis
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