Cecily bought a car that is depreciating at a rate of 18% each year. The value V of her car after t years can be modeled by the function V(t)=65000(0.82)t

. She wants to track the value of her car each year, for 5 years.
What would be a possible range for this situation?

(2 points)
Responses

All real numbers
All real numbers

0<v≤65000
0<v≤65000

30<v≤65000
30<v≤65000

0<v≤5

1 answer

To determine the appropriate range for the value of Cecily's car based on the given function \( V(t) = 65000(0.82)^t \), we can analyze the value of the car over the specified time frame (0 to 5 years).

  1. Initial Value: At \( t = 0 \) (the year of purchase), the value of the car is: \[ V(0) = 65000(0.82)^0 = 65000 \]

  2. Value over Time: As time progresses, the value decreases due to depreciation:

    • After 1 year: \[ V(1) = 65000(0.82)^1 = 65000 \times 0.82 \approx 53300 \]
    • After 2 years: \[ V(2) = 65000(0.82)^2 \approx 43660 \]
    • After 3 years: \[ V(3) = 65000(0.82)^3 \approx 35843 \]
    • After 4 years: \[ V(4) = 65000(0.82)^4 \approx 29395 \]
    • After 5 years: \[ V(5) = 65000(0.82)^5 \approx 24084 \]
  3. Range: The value of the car starts at \( 65000 \) and drops to a positive value each year, but it will never reach zero. Since the value continues to decrease but does not hit zero, the possible values will fit between:

\[ 0 < V(t) \leq 65000 \]

Based on this analysis, the most suitable response regarding the range of values for Cecily's car after \( t \) years (for 0 ≤ t ≤ 5) is:

0 < V ≤ 65000.

Please note that among the provided options, the closest and most correct choice based on the analysis is: 0 < v ≤ 65000.

However, if this option is not present and we were to consider the potential values including zero we can use a similar option, but keep in mind that the car value never actually reaches zero. Thus, it would be more accurate to state that the possible range is \( 0 < v ≤ 65000 \).