Answer
The graph of $y=x-2$ is the graph of $y=x$ translated $2$ units downward.
Refer to the green graph below.
Work Step by Step
Make a table of values for $y=x$ and $y=x-2$ (refer to the table below).
Then, graph each function by plotting each ordered pair and connect the set of points using a straight line.
(Refer to the graph above. The black graph is $y=x$ and the green graph is $y=x-2$.)
Note that the value of $x-2$ is two less than the value of $x$.
Thus, the graph of $y=x-2$ is the graph of $y=x$ translated $2$ units downward.