A train travels at a constant speed for a long distance. Compete the two statements that describe the constants of proportionality for the relationship between distance traveled and elapsed time. Express fractions in the form a/b. Part A:
The train travels (?) miles in 1 hour.

Part B:

It takes (?) hours for the train to travel 1 mile.

i cant see the graph

step-by-step explanation:

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."