The answer is option 4, (-1,2)
Well what is 30x3 (because that is how you would find what is one third of unknown) then you find the answer witch is 90$
One could be |x|<-2
This could be one since no matter what you put in for x, it will always be positive.
Find coordinate of points
Point P coordinates are (x,y) =
x is same that point L, y = 0 .
Then coordinates for P = (a,0)
Point M coordinates
x is same that point N, x=b
y is same that point L , y=c
Then coordinates for M = (b,c)