The graph below shows distances traveled by Car A and Car B. Car A is represented by the line containing point A, and Car B is represented by the line containing point B. Use the graph to answer the following questions. Homework Help ✎
Which car is traveling faster? How can you tell?
Look at the slopes of the lines.
Car A, because its line is steeper.
Find the coordinates of point A and point B.
Look at the graph.
How fast did Car A travel (in miles per hour)? How fast did Car B travel?
Speed is equal to distance divided by time.
Car A = 60 miles per hour
Car B = 30 miles per hour
Does the distance Car A has traveled vary directly with the time? Why or why not?
Yes, because the graph of Car A is a straight line through the origin.