Answer:
i think taht yes my dear friend lol
Step-by-step explanation:
D So yea or A I think at least try D
A ) The domain:

x ≤ -4 and x≥ 4 or: x ∈ ( - ∞ , - 4 ) ∪ ( 4 , + ∞ )
b ) f ` ( x ) =

c ) The slope of the line normal to the graph at x = 5
m = -1 / f `(x)
f ` ( x ) =
m = - 3/34
26, 15
41= x + (x+11)
41-11= 30
30= 2x
x= 15
15+ 11= 26
26+15= 41
Here,
- x+y=1212••••••
- x-y=518••••••
ADDITIONALL,both two equation.
we get that,
- x+y+x-y=1212+518
- 2x=1730
- x=865
so,
- x-y=518
- 865-y=518
- y=860-518
- y=347