Question

how can you tell from a position vs. time graph that an object is moving backward? the line is very steep the line has a negative slope the line is horizontal the line has a positive slope

Explanation:

In a position - vs - time graph, the slope represents velocity. A negative slope means the position of the object is decreasing with time, which indicates the object is moving backward. A very steep line just means a large magnitude of velocity (either forward or backward depending on the sign), a horizontal line means zero velocity (object at rest), and a positive - slope means the object is moving forward.

Answer:

B. The line has a negative slope