Velocity-time graphs are super helpful for understanding how speed changes when something moves. Here are the important parts to know:

• Slope: The slope shows how quickly something is speeding up or slowing down.

  • A positive slope means the speed is getting faster.
  • A negative slope means the speed is slowing down.

• Horizontal Line: If you see a flat line on the graph, it means the speed is staying the same. That means nothing is changing.

• Area Under the Curve: The space between the graph line and the time axis tells us how far something has traveled during that time.

For instance, if the slope is $2\, \text{m/s}^2$, it means that the speed increases by $2\, \text{m/s}$ every second.