What information does the x-axis provide on a distance-time graph?

The x-axis on a distance-time graph represents time.

In a distance-time graph, the x-axis is crucial because it shows the progression of time, usually measured in seconds, minutes, or hours. This allows us to track how an object's position changes over a specific period. By plotting time on the x-axis, we can easily analyse the relationship between time and distance, helping us understand the speed and movement of the object.

For example, if you are looking at a graph showing a car's journey, the x-axis will tell you how many hours or minutes have passed since the car started its trip. This is essential for calculating speed, as speed is the distance travelled divided by the time taken. If you see a straight, diagonal line on the graph, it indicates that the car is moving at a constant speed. A steeper line means the car is moving faster, while a flatter line indicates a slower speed.

Moreover, the x-axis helps us identify periods of rest or constant motion. If the line on the graph is horizontal, it means the object is stationary, as the distance isn't changing over time. This can be particularly useful in real-life scenarios, such as planning travel routes or understanding the motion of different objects.

In summary, the x-axis on a distance-time graph is fundamental for interpreting how time affects the distance travelled, making it easier to analyse and understand motion.