Answer:
2y bigger or same -12-4y is correct
Step-by-step explanation:
Y=1
2=-12-4×1
2=-16
2 is bigger
Y=-2
-4=-12-4×(-2)
-4=-4 it's same
Answer:
If you are trying to simplify this, the answer would be: 
Hope this helps! If not, feel free to comment below and I'll see what else I can do to help. Thanks and good luck!
Answer: No
Currently we don't have enough information to prove this quadrilateral is a parallelogram. One piece of information that would be useful would be if the other diagonal is bisected. If that's the case, then we have a parallelogram (we would first prove the triangles congruent and then use the corresponding congruent angles to set up the parallel lines). Unfortunately, we only know about one diagonal being bisected, but not both, so we don't have enough info.
Answer:
-20
Step-by-step explanation:
