It is 15 meters long on each side.
You find the square root of 225 which is 15, because when you multiply 15 by 15 you get 225.
K-263.48=381.09
we add 263.48 on both sides
k=644.57
Well you would start at Y= 0(-x) -2. So (0, -2) then you would move to the left by 1 and move down by 1.
Answer:

Here you buddy hope it helps!