Question

The graph shows the total amount of an investment account that has a principal of $5,000 and increases by 70% every 10 years. Estimate the balance of the investment after 15 years to the nearest thousand.

(1 point)

$11,000

$8,000

$10,000

$9,000
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Answer 1

After 15 years the factor is 1.7^(15/10) = 1.7^(3/2) ≈ 2.2165.
Balance ≈ 5000 × 2.2165 ≈ $11,083, which rounds to $11,000.