This is what i have so far.
1. (-oo,-4)U(-2,3)U(4,oo)
2. (-4,-2)U[3,4]
3. (-3,-1)U(0,-2)
4. (-5,-3)U(-1,0)U(3,oo)
5. (-4,-2)U(-1,1)
6. (1,3)
7. (-oo,-5)U(3,4)U[4,oo]
8. (-5)
From your graph, I suggest the following:
1. (-inf, -4) U (-2, 3) U (4, 13)
2. (-4, -2) U (3, 4) U (13, inf)
3. (-3, -1) U (0, 2)
4. (-5, -3) U (-1, 0) U (2, 4) U (4, inf)
5. (-5, -1) U (-1, 1)
6. (1, 3)
7. (-inf, -5) U (3, 4) U (4, inf)
8. (-inf, -5)
How are you getting the 13?
Extrapolate the right-most line. For every 2 units reduction in y it increases by 3 units in x.
.
Okay i understand, thanks
+280 
