Devise the exponential growth function that fits the given data, then answer the accompanying question. be sure to identify the reference point (t= 0) and units of time. between 2005 and 2010 , the average rate of inflation in a certain country was about 4 % per year. if a cart of groceries cost $190 in 2005 , what will it cost in 2015 assuming the rate of inflation remains constant? what is the reference point (t=0)? a. the inflation rate, 5% b. the cost of groceries $120. c. the year 2010. d. the year 2005. e. the year 2015.

The cost in 2015 will be $283.45.

What is the reference point (t=0)?

d. The year 2005.

Step-by-step explanation:

The exponential growth model for the cost is the following:

In which C(t) is the cost after t years, is the initial cost and r is the decimal inflation rate

In this problem, we have that:

What will it cost in 2015 assuming the rate of inflation remains constant?

2015 is 10 years after 2005, so this is C(10).

The cost in 2015 will be $283.45.

The reference point is the year in which t = 0, so the year 2005.

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step-by-step explanation: