document.write( "Question 980036: If (9, -2) is the endpoint of a line segment, and (6, 2) is its midpoint, find the other endpoint.
\n" ); document.write( " a. (3, 6)
\n" ); document.write( " b. (17, -8)
\n" ); document.write( " c. (3, -6)
\n" ); document.write( " d. (15, -10)\r
\n" ); document.write( "\n" ); document.write( "I spend an hour trying ti figure it out ( please help
\n" ); document.write( "thanks
\n" ); document.write( "Michael
\n" ); document.write( "

Algebra.Com's Answer #601238 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Hi there,
\n" ); document.write( "If you give the line points.
\n" ); document.write( "A (you are trying to find)
\n" ); document.write( "B (Mid pt) (6,2)
\n" ); document.write( "C (End pt) (9,-2)\r
\n" ); document.write( "\n" ); document.write( "AB/BC = b - a/c - b = 1/1
\n" ); document.write( "Cross multiply
\n" ); document.write( "b - a = c - b
\n" ); document.write( "-a = c - b - b
\n" ); document.write( "-a = c -2b
\n" ); document.write( "Multiply both sides by -1
\n" ); document.write( "a = 2b - c
\n" ); document.write( "a = 2(6,2) - (9,-2)
\n" ); document.write( "a = (12,4) - (9,-2)
\n" ); document.write( "a = (3, 6)
\n" ); document.write( "Therefore point A = (3,6)
\n" ); document.write( "Hope this helps:-)
\n" ); document.write( "
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