document.write( "Question 316541: (-2,4) and (1,0) are opposite vertices in a parallelogram . if (-4,0) is the third vertex , then the fourth vertex is \r
\n" ); document.write( "\n" ); document.write( "A (3,4) B (-1,-4) C (-7,4) D (-2,0)
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Algebra.Com's Answer #226441 by Fombitz(32388)\"\" \"About 
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\n" ); document.write( "From (1,0), move 2 in the x and 4 in the y.
\n" ); document.write( "(1,0)+(2,4)=(3,4)\r
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\n" ); document.write( "A) is the correct answer.
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