Answer
The graph is in the figure below
Work Step by Step
When $x\neq 1$ this is a linear function in disguise:
$$f(x)=\frac{x^2-x}{x-1}=\frac{x(x-1)}{x-1}=x$$
and it was legal to cancel the term $x-1$ because $x\neq1$.
So this function can be rewritten as
$$f(x)=\bigg\{_{x,\quad x\neq1.}^{2,\quad x=1;}.$$
This function is given on the graph below where the filled circle says that the endpoint is included while the empty circle means that the endpoints are excluded
