Problem

Evaluating an exponential function that models a real-worid situation

If the rate of inflation is 2.5% per year, the future price p(t) (in dollars) of a certain item can be modeled by the following exponential function, where f is the number of years from today.
p(t)=1200(1.025)t

Find the current price of the item and the price 8 years from today.
Round your answers to the nearest dollar as necessary.
Current price:
Price 8 years from today: 5
Explanation
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Answer

Final Answer: The current price of the item is 1200 dollars and the price 8 years from today will be 1462 dollars.

Steps

Step 1 :The question is asking for the current price of the item and the price 8 years from today. The current price can be found by substituting t=0 in the given function, because the current time is 0 years from today. The price 8 years from today can be found by substituting t=8 in the given function.

Step 2 :Let's calculate the current price: p(0)=1200(1.025)0

Step 3 :So, the current price of the item is 1200 dollars

Step 4 :Now, let's calculate the price 8 years from today: p(8)=1200(1.025)8

Step 5 :So, the price 8 years from today will be 1462 dollars

Step 6 :Final Answer: The current price of the item is 1200 dollars and the price 8 years from today will be 1462 dollars.

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