The cost of the loan is increasing as time goes by.
The standard exponential function is expressed as:
y = ab^x
b is the rate of the function
The value of b depends on the increase or decrease in the rate
Since the value of b in the function 5000(1.08)^x is greater than 1, hence the the cost of the loan is increasing as time goes by.
Learn more on expoenential function here: https://brainly.com/question/12940982