Question

what does the transformation $f(x) \mapsto f(x - 9)$ do to the graph of $f(x)$? translates it 9 units right translates it 9 units up translates it 9 units down translates it 9 units left

Explanation:

For function transformations, when replacing $x$ with $x - h$ in $f(x)$, the graph shifts $h$ units to the right. Here, $h = 9$, so the graph shifts right 9 units.

Answer:

translates it 9 units right