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Home > AC > Chapter 3 > Lesson 3.1.1 > Problem 3-8

3-8.

GO GOLDEN GOPHERS! Homework Help ✎

The graph below describes the distance two cars have traveled after leaving a football game at the University of Minnesota.

3.1.1-8-Graph Car driving down road.

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

    You can find this by discovering which car traveled a farther distance in a shorter amount of time.

    Car B was traveling faster.

    Its line is steeper.

  2. The lines cross at (2, 80). What does this point represent?

    What are the units for the and coordinates?

    In 2 hours, both cars will be 80 miles from the game.

  3. Assuming that Car A continued to travel at a constant rate, how far did Car A travel in the first 4 hours?

    Because Car A traveled 80 miles in 2 hours at a constant rate, it went 40 miles in 1 hour.
    If the Car A travels 40 miles every hour, how far will it travel in 4 hours?