document.write( "Question 1154920: The diagonals of quadrilateral ABCD intersect at E(- 1, 4) . ABCD has vertices at A(1, 7) and B(- 4.5) What must be the coordinates of C and D to ensure that ABCD is a parallelogram? \n" ); document.write( "

Algebra.Com's Answer #777453 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "The solution by @MathLover1 is   W R O N G.\r
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\n" ); document.write( "\n" ); document.write( "You can not use it.   Do not use it.   For your safety, ignore it.\r
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\n" ); document.write( "\n" ); document.write( "Use the solution by Jim, instead. \r
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\n" ); document.write( "\n" ); document.write( "@Mathlover    $\"highlight%28_M_I_S_T_A_K_E_N_L_Y_%29%29\"$ assumes that the point E is the middle of AD, but it is not so.\r
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\n" ); document.write( "\n" ); document.write( "Next, she    $\"highlight%28_M_I_S_T_A_K_E_N_L_Y_%29%29\"$ assumes that the point E is the middle of BC, but it is not so, too.\r
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\n" ); document.write( "\n" ); document.write( "Wrong assumptions lead her to wrong solution and to wrong answer.\r
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\n" ); document.write( "\n" ); document.write( "Dear tutor @MathLover1,\r
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\n" ); document.write( "\n" ); document.write( "don't you think that it is just time for you to take a break at this forum ?\r
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