4. The scenario above can be modeled by a type of function known as exponential function; in particular, an exponential growth function. An exponential function has the forr f (x) = a. b* , where a is a non-zero real number and b is a positive real number other than 1. An exponential growth function has a value of b that is greater than 1. Values "a" and "b" are the parameters of the function. Write explicit and recursive equations that describe the relationship between x (day) and y(number of people who know) for the situation of spreading the news about the soft opening of Jan's ice cream store. What type of a sequence does the function represent? What do the parts of the equations represent in terms of the context