Answer:
a) v(t) = 1500(0.90^t)
b) $984.15
Step-by-step explanation:
a) For your exponential model, you are given ...
- initial value = 1500
- decay rate = -10%
So, you know the growth factor is 1 - 10% = 0.90, and the model is ...
v(t) = (initial value)(1 +rate of change)^t
v(t) = 1500(0.90^t)
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b) Filling in t=4 and doing the arithmetic, we find ...
v(4) = 1500(0.90^4) = 984.15
The value of the computer after 4 years is modeled as $984.15.
