I believe the answer would be DE is parallel to line segment FG
Answer:
262880
i had a test with the same question, i promise its right :)
Answer:
1. 
2. not completely sure but i think its 
3.x
=
2
i
√
5
,
−
2
i
√
5
4.x
=
−
9
±
√
73
/2
5. Im not sure...
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