Question

Kendra is riding her skateboard in her driveway. She starts at her door and finishes at the end of the driveway ten meters away.

Then Kendra gets back on her skateboard and begins to move again. The position vs. time graph below shows Kendra's motion in relation to her door.



Which of the following is true?
A.
Kendra is riding toward her door at a constant speed.
B.
Kendra is speeding up (accelerating).
C.
Kendra is slowing down (decelerating).
D.
Kendra is riding away from her door at a constant speed.

Answer 1

Without seeing the actual position vs. time graph, I can still help you analyze how to interpret it based on common characteristics.

- If the line on the graph is **straight and sloping downwards**, Kendra is moving toward her door at a constant speed (Option A).
- If the line on the graph is **curved upwards**, Kendra is speeding up (accelerating) (Option B).
- If the line on the graph is **curved downwards**, Kendra is slowing down (decelerating) (Option C).
- If the line on the graph is **straight and sloping upwards**, Kendra is riding away from her door at a constant speed (Option D).

Based on these interpretations, please identify the nature of the line on the graph to choose the correct option.