Question

multiple - choice question what does a horizontal line represent? constant line (object has stopped) direct linear relationship (positive constant velocity) inverse relationship (negative constant velocity)

Explanation:

In a position - time graph, a horizontal line means the position of the object is not changing over time, which implies the object has stopped. A direct linear relationship (positive constant velocity) would be a non - horizontal straight line with a positive slope, and an inverse relationship (negative constant velocity) would be a non - horizontal straight line with a negative slope.

Answer:

constant line (object has stopped)