It is A because I saw your other post
The slope:


<span>The denominator can not be <span>zero!
Conclusion: The slope is undenfined.
</span></span>
Answer:
11,968
Step-by-step explanation:
I'm not sure, but I think its 11,968
Simplifying
2ab + 4ab = 0
Combine like terms: 2ab + 4ab = 6ab
6ab = 0
Solving
6ab = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Divide each side by '6'.
ab = 0
Simplifying
ab = 0