Answer:
We have this original function given:

And we want to transtale vertically downward 4 units this function and we will get the new fnction h(x) and on this case we have to do this transformation:

And replacing we got:

Explanation:
We have this original function given:

And we want to transtale vertically downward 4 units this function and we will get the new fnction h(x) and on this case we have to do this transformation:

And replacing we got:
