Constant of Variation Given that f(x) = 2/x² and g =(x) = 13/x²

What is the domain of the functions f and g?

a. only positive integers
b. All non zero real numbers
c. only negative integers
d. All real numbers including zero

Please select the best answer from the choices provided

B. All non zero real numbers

Step-by-step explanation:

I calculated it logically

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.