Question

The price of gas, which started at $2.25 per gallon, increased at a rate of 4% per year. Write the function that models the situation, substituting numerical values for A and r into the expression.

Answer 1

f(x)=2.25X(1+.04)^x

Explanation:

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Answer 2

`f ( x ) = 2 . 2 5 ( 1 + 0 . 4 ) ^ x`

Explanation:

We are given that the price of gas started at $2.25 and increased at a rate of 4% per year.

We are to write a function which models this situation using numerical values of A and r into the expression.

A = $2.25

r = 4%

Assuming x to be the time in years, the function would be:

`f ( x ) = 2 . 2 5 ( 1 + 0 . 4 ) ^ x`