The graph presents the travel data for four different cars showing the distance they are from home (in miles) over time (in hours). Which car has the highest rate of speed?

Rationale

Car A has the highest rate of speed.

The speed of a car is determined by the distance it travels over a certain period of time. In the graph, car A covers the greatest distance in the shortest amount of time, indicating the highest speed.

A (A) CORRECT

Car A covers the greatest distance in the least time compared to the other cars. The steep incline of its trajectory on the graph indicates a higher rate of speed.

B (B) YOUR ANSWER

While Car B also covers a significant distance, the slope of its graph is less steep compared to car A, indicating it travelled at a slower speed.

C (C) YOUR ANSWER

Car C's trajectory on the graph is even less steep than that of car B, indicating it travelled at an even slower speed.

D (D) YOUR ANSWER

Car D's trajectory on the graph is the least steep of all four cars, indicating it travelled at the slowest speed.

Conclusion

Even though all four cars are moving, the rate of speed differs for each car. Car A has the highest rate of speed because it covers the greatest distance in the least amount of time. The other cars, B, C, and D, cover less distance in the same amount of time, indicating slower speeds. The steepness of a car's trajectory on the graph is an indicator of its speed, with steeper lines indicating higher speeds.

The graph presents the travel data for four different cars showing the distance they are from home (in miles) over time (in hours). Which car has the highest rate of speed?

Car A has the highest rate of speed.

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