Answer:
g(x) + 4 = x
g(x) = x - 4 which is probably the answer you should submit.
Step-by-step explanation:
Givens
f(x) = x
g(x) +4 = f(x)
Comment
f(x) and g(x) are forms of y or z. What they mean is that whatever x is on the left, it will be make the same on the right. It is just a short hand to help you in defining the y value.
If you want to move down, The y value is the one to notice. Notice that it is not intuitive. If you want to go down the sign on y + 4 = x is the equation you use. It is the exact opposite of what you think it should be. The graph below should help you.
The red line is f(x) = x
The blue line is g(x) + 4 = x.
The blue line can be written as g(x) = x - 4 which would be more inetuitive.
