The relationship between the number of hours Stephanie worked (h) and the total number of runners that passed by her (r) can be established by observing that for every hour she worked, 150 runners passed by her. This indicates a direct proportional relationship.
From the data given in the chart:
- For 1 hour (1h), runners (r) = 150
- For 2 hours (2h), runners (r) = 300
- For 3 hours (3h), runners (r) = 450
- For 4 hours (4h), runners (r) = 600
This shows that the number of runners is 150 times the number of hours. Therefore, the correct equation for this relationship is:
r = 150h
So the answer is:
r = 150h