The problem asks whether the endpoints of the given graph are included or not. A closed circle indicates that the endpoint is included, while an open circle indicates that the endpoint is not included.

1. Problem Description

The problem asks whether the endpoints of the given graph are included or not. A closed circle indicates that the endpoint is included, while an open circle indicates that the endpoint is not included.

2. Solution Steps

The left endpoint of the graph is at $(1, -6)$. The graph shows an open circle at this point.

The right endpoint of the graph is at $(5, 0)$. The graph shows a closed circle at this point.

Therefore, the left endpoint is not included, and the right endpoint is included.

3. Final Answer

The left endpoint is not included.

The right endpoint is included.