document.write( "Question 715034: The midpoint of the line segment ST has coordinates (3,6). If S is the point (4,1), find the coordinates of T.\r
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document.write( "I'm obviously stuck with this question though I did attempt to do it.\r
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document.write( "Here's my working out.\r
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document.write( "Let the coordinate of T be (x,y)
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document.write( "Then by the midpoint formula (x+3/2, x+6/2)=(4,1)\r
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document.write( "Midpoint formula for x.
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document.write( "x+3/2=4
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document.write( "x+3=8 (I've multiplied both sides by 4 though I don't quiet remember why now)
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document.write( "x=5\r
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document.write( "I haven't gone further than this onto the midpoint formula for y because I know that what I've done is completely wrong.\r
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document.write( "So I'd really appreciate it of someone did help me.\r
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document.write( "Thanks in advance =) \n" );
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Algebra.Com's Answer #439172 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The midpoint of the line segment ST has coordinates (3,6). If S is the point (4,1), find the coordinates of T. \n" ); document.write( "I'm obviously stuck with this question though I did attempt to do it. \n" ); document.write( "Here's my working out. \n" ); document.write( "Let the coordinate of T be (x,y) \n" ); document.write( "Then by the midpoint formula ((x+3)/2, (y+6)/2)=(4,1) \n" ); document.write( "Midpoint formula for x. \n" ); document.write( "(x+4)/2=3 \n" ); document.write( "x+4 = 6 \n" ); document.write( "x = 2 \n" ); document.write( "-------- \n" ); document.write( "(y+1)/2 = 6 \n" ); document.write( "y+1 = 12 \n" ); document.write( "y = 11 \n" ); document.write( "============ \n" ); document.write( "Note: Parentheses make a difference. \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |