Question

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.

Answer 1

D. George's speed in miles per minute.

Explanation:

This answer is quite confusing because A. and D. are very similar but here is my reasoning.

The slope of the line is 1.

So B. and C. isn't right because they didn't travel 1 mile and they don't have 1 mile left to drive.

Now it is between A. and D. (1 minute per mile and 1 mile per minute)

When talking about speed the distance comes first (Ex. 20 miles per hour), so the best answer is D.