Answer:
Rate of change is increase of 51 followers per year.
Step-by-step explanation:
Given:
Number of followers in 2012 = 74
Number of followers in 2015 = 227
Therefore, increase in followers = 227 - 74 = 153
Duration for the change = 2015 - 2012 = 3 years
Rate of change of followers is given as:
[tex]\textrm{Rate of change}=\frac{Increase}{Duration}=\frac{153}{3}=51[/tex]
Therefore, rate of change is increase of 51 followers per year.
