Algebra-1

The graph is y = 4, which is a horizontal line parallel to the x-axis. It starts with a solid point at (−5, 4) on the left and an open point at (8, 4) on the right.

Continuous vs Discrete:

Continuous: A function is considered continuous if its graph can be drawn without lifting the pen, meaning there are no breaks or gaps in the graph. For the line y = 4, even though the point at x = 8 is open (not included), the function y = 4 remains constant y = 4 from x = -5 up to just before x = 8. Therefore, mathematically speaking, the line y = 4 is continuous on the interval [−5, 8...