How could you use the position vs. time graph to figure out who walked faster

Question

Becca and sam each walked a 100-meter course around the school track. Each of their wplots are plotted on a single position vs. time graph. If you didnt have a chance to watch them in person, how could you use the position vs. time graph to figure out who walked faster 

Answer 1

The line graph with larger value of slope indicates faster speed

distance travelled on Y axis and time on X axis

Answer 2

Hello Mia,

 

If you're looking at a graph, just see whose plot reaches the 100-m mark first.

 

If this answer doesn't seem clear to you, let us know. :)