Question

The price of products may increase due to inflation and decrease due to depreciation. Marco is studying the change in the price of two products, A and B, over time.

The price f(x), in dollars, of product A after x years is represented by the function below:

f(x) = 12500(0.82)x

Part A: Is the price of product A increasing or decreasing and by what percentage per year? Justify your answer. (5 points)

Part B: The table below shows the price f(t), in dollars, of product B after t years:


t (number of years) 1 2 3 4
f(t) (price in dollars) 5600 3136 1756.16 983.45


Which product recorded a greater percentage change in price over the previous year? Justify your answer. (5 points)

Answer 1

plz show work bc I don't rlly understand

Answer 2

So if u product A and u get the product is increasing. To bigger the number you plug into x.
Since product A is 82% to change the rate. And product B is 42% change rate. So ur answer will be product A change rate is higher than Product B by 40%. Hope this helps ^^