Solution:
I'm not sure if there is law for it or not, but you can replace each x to -2 if both sides are equal then the equation is true.

A. is incorrect.

B. is incorrect.

C. is incorrect.

D. is correct.
Answer:
D. 
<em>Hope this was helpful.</em>
The time(h), would be the independent variable and the temperature(C) would be the dependent variable.
Best Answer: <span>4/3x-6y, 1/5x-10y
= 4/3(x-2y) , 1/5(x-2y)
LCD = 3 × 5(x – 2y) = 15(x – 2y</span>
A is the answer domain is the x
N=-5 you got to get the n by it self