Darren wanted to see how contagious yawning can be. To better understand this, he conducted a social experiment in which he yawned in front of a large, random crowd and observed how many people yawned as a result.
The relationship between the elapsed time t, in minutes, since Darren yawned, and the number of people in the crowd, P(t), who yawned as a result is modeled by the following function: P(t)=5(4)t10.5
Complete the following sentence about the growth rate of people who yawned in Darren's experiment.
The number of people who yawned quadruples (is multiplied by 4) every miniutes