<PRE><B>Question 313677</B>
 Please help me prove that point A(-1,2), point B(2,4), point C(4,2) and point D(3,0) form a parallelogram. Thanks.
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Plot the 4 corner points so you can see which sides would have to be parallel.
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Determine the slope of the opposing sides to see if they are the same.
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If the slopes are equal for each pair of opposite sides the figure
would be a parallelogram.
Cheers,
Stan H.</PRE>