document.write( "Question 5441: The center of a circle is (-4,7)and one endpoint of a diameter is (2,-1). What is the other endpoint of the diameter?
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document.write( "a.(6,15)
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document.write( "b.(-10,16)
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document.write( "c.(-6,13)
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document.write( "d.(-10,15)
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document.write( "thanks for your help! \n" );
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Algebra.Com's Answer #2889 by longjonsilver(2297)![]() ![]() You can put this solution on YOUR website! the distance is the same on either side of the centre. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "From the centre to (2,-1) we have moved 6 units in the x-direction and -8 units in the y-direction.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So, in the other direction, we need to go -6 units in the x-direction and 8 units in the y-direction... Hence \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x: -4-6 --> -10 \n" ); document.write( "y: 7+8 --> 15\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so point is (-10,15)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "jon. \n" ); document.write( " \n" ); document.write( " |