document.write( "Question 1016812: Find the equation for the circle with a diameter whose endpoints are​ (2,-2)​ and (-5,4). ???? \n" ); document.write( "
Algebra.Com's Answer #633192 by ikleyn(52873)\"\" \"About 
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\n" ); document.write( "Find the equation for the circle with a diameter whose endpoints are (2,-2) and (-5,4). ????
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document.write( "The center is at (-1.5, 1).\r\n" );
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document.write( "Notice that -1.5 = \"%282+%2B+%28-5%29%29%2F2\" and 1 = \"%28-2+%2B+4%29%2F2\".\r\n" );
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document.write( "The square of the diameter is \"7%5E2+%2B+%28-6%29%5E2%29\" = 85.\r\n" );
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document.write( "Notice that 7 = 2 - (-5),  and  -6 = -2 - 4.\r\n" );
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document.write( "The equation of the circle is \r\n" );
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document.write( "\"%28x%2B1.5%29%5E2+%2B+%28y-1%29%5E2\" = \"85%2F4\".\r\n" );
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document.write( "The radius of the circle is \"sqrt%2885%29%2F2\".\r\n" );
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