document.write( "Question 908991: Three consecutive vertices of a parallelogram are (1,-3) (-3,-1) (3,5). Find the fourth vertex. Thanks! \n" ); document.write( "
Algebra.Com's Answer #551453 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "symmetry says fourth vertex is (7,3)(down2, over 4) from P(3,5))
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