Answer:
B. 40
Step-by-step explanation:
According to the graph, the tire completes a revolution after 3 seconds.
Bascically, the rate of revolution is 3 seconds per revolution.
We can use the rule of three to find the number of revolutions made in 2 minutes, which is 120 seconds.
[tex]120sec\frac{1rev}{3sec} =40rev[/tex]
Therefore, the tire makes 40 revolutions in 2 minutes.
Remember that the distances between two extreme points represents the time of one revolution. Observe that the tire began at 0 seconds and completed a revolution at x = 3, that's the period of the tire.
