[2,-1 [-5,4 would be the answer because for you to be able to see where your line is going to go you have to finish it
I'm not completely sure about this. But i think that you can use the Pythagorean Theroem to help with this problem. Which is:
T= 7M+MFG
SUBTRACT 7M from both sides
T- 7M = MFG
DIVIDE BOTH SIDES BY MF
T-7M / MF = G
The length of the field will be calculated as:
P=2(L+W)
P=376
W=89
thus substituting the values in the equation we get;
376=2(L+89)
376/2=(L+89)
solving for L;
188=L+89
L=188-89
L=99 yards
therefore the length is 99 yards
Hope it helps!