Algebra-1

Based on the graph, which is a horizontal line parallel to the x-axis:

Left endpoint (solid) is (-9, 7).

Right endpoint (solid) is (5, 7).

For a horizontal line, the y-coordinate remains constant across all points on the line. In this case, the line is at y = 7.

Domain:

The domain refers to the set of all possible x-values where the graph exists.

The line extends horizontally from x = -9 (inclusive) to x = 5 (inclusive), as indicated by the solid endpoints.

Therefore, the domain in set notation is: {x∣−9≤x≤5}...