1. Three trains A, B, and C, leave the train station at the same time. The graph below shows the relationship between time and distance for Train A. Based on the graph below, what is the speed of Train A expressed in unit rates? A' 40 miles per hour
B' 30 miles per hour
C' 120 miles per 4 hours
D' 180 miles per 6 hours

Graph for Train A

2. The relationship between time and distance for Train B is given by equation d=45t, where d represents distance in miles and t represents time in hours. Based on the equation d=45t, what is the speed of the train?

A' t, that is time in hours
B' 45 miles per hour
C' d, that is distance in miles
D' not enough information

3. The relationship between time and distance and time for Train C is shown in the table below, where d represents distance (in miles) and t represents time (in hours). What is the ratio of distance to time in simplified form.

A' 35 miles/1 hr
B' 45 miles/ 1 hr
C' 105 miles/3 hrs
D' I am confused

4. Which train is the fastest? *

A
B
C

5. Which retationship between time and distance is proportional? A, B, C? Look up the characteristics of the proportional relationship in the portfolio description above or watch the video

A
B
C
A, B, and C

6. Which is the easiest way for you to understand the relationship between distance and time: graph, table, or equation? Explain