Answer:
k=3/2
Step-by-step explanation:
6=k(4) where k is constant, or
k=6/4 which is equal to k=3/2
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Y=X+2
(0, 6), (4, 4), and (0, -4)
basically you pick 2 sides (each with endpoints at two of the three verticies) to be the adjacent sides, and then you can easily find the fourth vertex for each case.