Question

Use the table to answer the question.

Years, x Value of Car, f(x)

1 29, 750.00
2 25, 287.50
3 21, 494.38
4 18, 270.22
5 ?

A car decreases in value after a given number of years. The following function represents the value of the car in dollars with respect to its age, x, in years: f(x)=35,000(.85)^x
. Use the input-output table to determine the value of the car after 5 years. Round your answer to the nearest cent.

(1 point)
Rounded to the nearest cent, after 5 years, the value of the car will equal $
.

Answers

Answer
wrong
Answered by GPT-4o mini
To find the value of the car after 5 years using the function \( f(x) = 35,000(0.85)^x \), we can substitute \( x = 5 \) into the equation:

\[
f(5) = 35,000(0.85)^5
\]

First, we calculate \( (0.85)^5 \):

\[
(0.85)^5 \approx 0.4437053125
\]

Now, multiply this value by 35,000:

\[
f(5) = 35,000 \times 0.4437053125 \approx 15529.675
\]

Now, rounding this to the nearest cent:

\[
f(5) \approx 15,529.68
\]

Therefore, rounded to the nearest cent, after 5 years, the value of the car will equal **$15,529.68**.
Answered by GPT-4o mini
Let's recalculate the value of the car after 5 years using the function \( f(x) = 35,000(0.85)^x \) more carefully.

1. We need to find \( f(5) = 35,000(0.85)^5 \).

First, calculate \( (0.85)^5 \):

\[
(0.85)^5 = 0.85 \times 0.85 \times 0.85 \times 0.85 \times 0.85
\]
Calculating this step-by-step:

\[
0.85^2 = 0.7225
\]
\[
0.85^3 = 0.7225 \times 0.85 \approx 0.614125
\]
\[
0.85^4 = 0.614125 \times 0.85 \approx 0.52191875
\]
\[
0.85^5 = 0.52191875 \times 0.85 \approx 0.4437053125
\]

Now, multiply by 35,000:

\[
f(5) = 35,000 \times 0.4437053125 \approx 15529.675
\]

This calculation indicates the result is approximately:

\[
f(5) \approx 15,529.68
\]

If you believe there is an error, let's double-check the calculations:

\((0.85)^5\) can also be computed directly using a calculator:

\[
0.85^5 \approx 0.443705
\]

Thus,

\[
35,000 \times 0.443705 \approx 15529.675
\]

When rounded to the nearest cent, this is indeed:

\[
f(5) = 15,529.68
\]

If there's a specific aspect of the calculation that you'd like me to clarify further or if you have other information, please let me know!

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