2x+2 would be the expression
For the whole thing including the other point it would be [-6, 6] but just for f it should be [6]
It would be 400. Hope this helped. :)
Answer:
First one is not possible
Second one is possible, and would be an isocèles triangle
Third one is possible, would be scalene
Last one is not possible
Comment any further questions :)
Step-by-step explanation:
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