The account that recorded a greater percentage change in amount of money over the previous year is year 4
<h3>Part A: Is the amount of money in account A increasing or decreasing?</h3>
The exponential function is given as:
f(x) = 9628 * (0.92)^x
An exponential function is represented as:
f(x) = ab^x
If b is less than 0, then the function is an increasing function.
So, the function f(x) = 9628 * (0.92)^x is a decreasing function.
The percentage of decrement is then calculated as:
r =1 - b
This gives
r = 1 - 0.92
Evaluate
r = 0.08
Express as percentage
r = 8%
Hence, the percentage of decrement is 8%
<h3>Part B: The account that recorded a greater percentage change in amount of money over the previous year</h3>
r 1 2 3 4
g(r) 8,972 8,074.80 7,267.32 6,540.59
As a general rule:
As the number of years increases, the percentage change increases
Hence, the account that recorded a greater percentage change in amount of money over the previous year is year 4
Read more about exponential functions at:
brainly.com/question/2456547
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