The area under a velocity-time graph represents:Group of answer choicesdisplacementaccelerationchange in velocitychange in accelerationspeed

The area under a velocity-time graph represents displacement.

Here's why:

1. A velocity-time graph shows how velocity changes over time.
2. The area under the graph line (between the line and the time axis) is calculated by multiplying velocity (y-axis) by time (x-axis).
3. Velocity multiplied by time gives displacement (distance moved in a particular direction), according to the formula: Displacement = Velocity x Time.
4. Therefore, the area under a velocity-time graph represents displacement.