document.write( "Question 765553: Verify that the quadrilateral with vertices P(-2,2), Q(13,7) and R(5,1) is a trapezoid \n" ); document.write( "
Algebra.Com's Answer #466457 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
where is the 4th coordinate...please repost with a clear and complete question :)
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