Answer: B. down
Step-by-step explanation:
Translation rules:
For a function h(x):
- h(x+c) is a left-shift by c units.
- h(x-c) is a right-shift by c units.
- h(x)+c is a up-shift by c units.
- h(x)-c is a down-shift by c units.
Here, the graph of f(x) becomes the graph of g(x) =f(x)-4 which is similar to "h(x)-c".
That means , f(x) is shifted 4 units down to become g(x).
So, correct option : B. down
