2. to show that this coordinates rep a parallelogram, first sketch the coordinate on a graph paper or a plain paper. The second way is look at the vertices themselves. In this case too line must be equal and this evident from 0,0 i.e origin. then we go to point y 5,0 this is still on the y axis. point z 7,5 the height is 5 and for th last vertx we see also the height (y - axis ) to be the same i.e 5. Therefore, the vertices rep a parallelogram

May 20th, 2015

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