document.write( "Question 1118692: if the points A(-2,1),B(1,0),C(x,3)and D(1,y) are the vertices of parallelogram,find the values of x and y. \n" ); document.write( "
Algebra.Com's Answer #734125 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "I will assume the quadrilateral is ABCD, although you didn't say so. You might/will get different answers if the quadrilateral is ABDC, or ACBD, or....

\n" ); document.write( "(1) From A to B is 3 units right and 1 unit down.
\n" ); document.write( "(2) Therefore, from D to C must be 3 units right and 1 unit down.
\n" ); document.write( "(3) The y coordinate of C is 3; if D to C is 1 unit down, the y coordinate of D must be 4.
\n" ); document.write( "(4) The x coordinate of D is 1; if D to C is 3 units right, then the x coordinate of C must be 4

\n" ); document.write( "Answers: x = 4; y = 4
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