Mathematics: Fidel has a rare coin worth $550. each decade, the coin’s value decreases by 10% which kind of function best models the relationship between the coins value? is it increasing or decreasing.

Its neitherStep-by-step explanation:...

Fidel has a rare coin worth $550. each decade, the

breebree6929

09.03.2022

It is decreasing and function represent relationship between coins value is $f(n)=550(\frac{9}{10})^n$

Step-by-step explanation:

Given: Value of Coin = $ 550

Rate of Decrease of value of coin = 10% per decade

To find: Function that define relationship between coins value.

let n be the number of decade.

then value of coin after n decade is given by function, f(n)

$f(n)=550(1-\frac{10}{100})^n$

$f(n)=550(\frac{9}{10})^n$

Clearly we are given rate of decrease of coins value.

So. It is Decreasing.

Therefore, It is decreasing and function represent relationship between coins value is $f(n)=550(\frac{9}{10})^n$

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