The answer is C because if you put

Find the reflected two points which are:

They're just flipped equations
Answer:
10
Step-by-step explanation:
For
to be conservative, we need to have



Integrate the first PDE with respect to
:

Differentiate with respect to
:

Now differentiate
with respect to
:

So we have

so
is indeed conservative.
It just means multiply when they are right next to each other. the answer is 33