Inflation rises and falls in a cyclical manner. Consider the model where f(x) represents the change in inflation over time, given by x. If inflation is highest at 4.8% and lowest at 1.3%, what is c?
Unfortuenately, I am not able to solve your problem due to math issues, im not that good at math! I know a few bits of calculus at best.
Apologies! Maybe wait for Melody or EP, Alan those people?