Answer:
Hold the point (2,1) and drag it down until it is at the point (2, -1).
Step-by-step explanation:
Given the graph of y=f(x).
If we have:

This is a Vertical Translation Down by 2 units.
This means we shift the graph of y=f(x) down by 2 units.
From the graph:
In y=f(x), we have a point (2,1).

Hold the point and drag it down until it is at the point (2, -1).