Question $2$

Let $f(x)=\{\begin{array}{ccc}2x^2-x& if& x<mn>3</mn>\\ 3-x& if& x3\end{array}$

$\underset{x3}{lim}f(x)=f(0)$

$f$ is continuous at $x=3.$

$\underset{x{3}^{+}}{lim}f(x)=f(3)$

$\underset{x3}{lim}f(x)=f(3)$