Use a Graph to Determine Whether the Function Is Continuous $$g ( x ) = \left\{ \begin{array} { l l } 5 x + 2 & \text { if } x < 0 \\2 x + 2 & \text { if } x \geq 0\end{array} \right.$$

Use a graph to determine whether the function is continuous on its domain. If it is not continuous on its domain, list the points of discontinuity.
​ $$g ( x ) = \left\{ \begin{array} { l l } 5 x + 2 & \text { if } x < 0 \\2 x + 2 & \text { if } x \geq 0\end{array} \right.$$