Question 772429
On a graph paper , take 2 cm to represent one unit on both axes, draw the lines:

   x+3=0,y-2=0,2x+3y=12.

 write down the coordinates of the vertices of the triangle 
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You can use any scale on the graph paper, just graph the 3 lines.
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You can solve for the intersections algrebraically.  Take them 2 at a time.