### Home > ACC7 > Chapter cc32 > Lesson cc32.1.6 > Problem2-62

2-62.

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 ✎

1. Which car is traveling faster? How can you tell?

Look at the slopes of the lines.

Car A, because its line is steeper.

2. Find the coordinates of point A and point B.

Look at the graph.

3. How fast did Car A travel (in miles per hour)? How fast did Car B travel?

Speed is equal to distance divided by time.

$\text{Car A }= \frac{120}{2}; \text{ Car B }=\frac{120}{4}$

Car A = $60$ miles per hour
Car B = $30$ miles per hour

4. 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.