document.write( "Question 980036: If (9, -2) is the endpoint of a line segment, and (6, 2) is its midpoint, find the other endpoint.
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document.write( " a. (3, 6)
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document.write( " b. (17, -8)
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document.write( " c. (3, -6)
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document.write( " d. (15, -10)\r
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document.write( "I spend an hour trying ti figure it out ( please help
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document.write( "thanks
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document.write( "Michael \n" );
document.write( "
Algebra.Com's Answer #601238 by Cromlix(4381)![]() ![]() 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( " |