Kiran was running around the track. The graph shows the time, , he took to run various distances, . The table shows his time in seconds after every three meters.

A graph in a coordinate plane, horizontal axis, distance in meters, 0 to 24 by threes, vertical axis, time in seconds, 0 to 10 by ones. Graph begins at the origin and moves steadily upward and to the right, passes through ( 3 comma 1)  and ( 18 comma 6 ).

1. How long did it take Kiran to run 6 meters?
2. How far had he gone after 6 seconds?
3. Estimate when he had run 19.5 meters.
4. Estimate how far he ran in 4 seconds.
5. Is Kiran's time a function of the distance he has run? Explain how you know.

Priya is running once around the track. The graph shows her time given how far she is from her starting point.

A graph in a coordinate plane. Horizontal axis, distance from starting line in meters, vertical axis, time in seconds. The graph begins at the origin and increases steadly as it moves right until it reaches 200 comma 40.  The graph then turns and increases steadily as it moves left until it reaches the point 0 comma 74.

1. What was her farthest distance from the starting line?
2. Estimate how long it took her to run around the track.
3. Estimate when she was 100 meters from the starting line.
4. Estimate how far she was from the starting line after 60 seconds.
5. Is Priya's time a function of her distance from her starting point? Explain how you know.