For this case we have a function of the form:
[tex] y = A * (b) ^ x
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Where,
A: initial value
b: decrease rate
x: time in years
Substituting values we have:
[tex] y = 28000 * (0.9275) ^ x
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For the year number 5 we have:
[tex] y = 28000 * (0.9275) ^ 5
y = 19219
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Answer:
the value of the car 5 years after it is purchased will be:
[tex] y = 19219 [/tex]