Since the given function is

Since the function after transformation is

Then we will find g(x) by substituting f(x) by (x + 4)

Simplify it

a) The transformed equation is

b)
When we change the sign of f(x), that means we made a reflection on the x-axis
i. -f(x) means reflect f(x) about the x-axis
When we add f(x) by a number, then that means we translate the f(x) by a number
ii. +2 means translate the function 2 units up