Find the equation of the line in point slope form passing through the given pair

I believe this might be the same question

In conclusion, product A has a greater change in price for the previous year.

Step-by-step explanation:

Part A: It is increasing by 25% because 1 + 0.25 = 1.25. Any number greater than 1 is increasing. A number less than one is decreasing.  

Part B:  

Product A-  

f(x) = 72(1.25)^3  

f(x) = 72(1.953125)  

f(3)= 140.625  

Product B price of previous year: 109.85  

In conclusion, product A has a greater change in price for the previous year.