The graph starts with a filled circle at approximately (-2, 0).
From x = -2 to approximately x = 0, the graph is a horizontal line segment at y = 0.
At x = 0, the graph transitions to a curve that goes upwards to a peak at approximately (0, 0), then curves downwards and passes through (1, -1) and reaches a filled circle at approximately (2, -4).
The point at (-2, 0) is included in the graph.
The curve from x=0 to x=2 appears to be a part of a parabola opening downwards.