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

It must have the same slope as the given line, so

m = -A/B = -1/-2 = 1/2

So far, we have

y = mx + b = x/2 + b

Use the given point to find b.

4 = -2/2 + b = -1 + b

b = 5

y = x/2 + 5

Multiply through by 2.

2y = x + 10

Standard form:

x - 2y = -10