The function $f(x)=200,000(1.21)^{x}$ gives a company's predicted annual revenue, in dollars, $x$ years after the company started selling light bulbs online, where $0

Question

The function $f(x)=200,000(1.21)^{x}$ gives a company's predicted annual revenue, in dollars, $x$ years after the company started selling light bulbs online, where $0<$x$\leq 10$. What is the best interpretation of the statement "$f(5)$ is approximately equal to 518,748" in this context?

Accepted Answer

5 years after the company started selling light bulbs online, its predicted annual revenue is approximately 518,748 dollars.

Answer

5 years after the company started selling light bulbs online, its predicted annual revenue will have increased by a total of approximately 518,748 dollars.

Answer

When the company's predicted annual revenue is approximately 518,748 dollars, it is 5 times the predicted annual revenue for the previous year.

Answer

When the company's predicted annual revenue is approximately 518,748 dollars, it is 5% greater than the predicted annual revenue for the previous year.