George drove 240 miles to his grandmother's house. The graph below shows the relationship between the distance he traveled and time. What does the slope of the graph represent? A. George's speed in minutes per mile. B. The total distance he has traveled. C. The total distance he has left to travel. D. George's speed in miles per minute.
![George drove 240 miles to his grandmothers house The graph below shows the relationship between the distance he traveled and time What does the slope of the gra class=](https://us-static.z-dn.net/files/dc1/7cdc45c56222e1e44bb7b5b08802cca1.png)