Answer
$a.$
Since $g(x)=f(x-4)$, we start with the graph of f(x) and
- shift it to the right by 4 units ... to get $f(x-4)$.
$b.$
Since $g(x)=f(x)-4$, we start with the graph of f(x) and
- lower it by 4 units ... to get $f(x)-4$
Work Step by Step
The exercise is to describe transformations,
so the answer is given in step-by-step form.