human
Calculate the distance travelled using a speed-time graph ![A speed-time graph. At 6 seconds, the car is travelling at a speed of 8 metres per second. After 8 seconds, the car is travelling at a speed of 15 metres per second. ]() Here is a speed-time graph for a car.

Which of the following gives the best estimate for the distance travelled between \( 6 \) and \( 8 \) seconds? \( 30 m \)
gpt
Believes that when finding area under graph you can use the upper y value rather than average of upper and lower