4. The formula for compound interest is F = P(1 + r/n)^nt". “P” is the principal, “r” is the annual interest rate (expressed as a decimal), "n" is the number of times per year the interest is
compounded, and "F" is the balance after “t” years.
•Write a function, F(t), in simplest form, that represents the balance of an investment of $500 at 4%
interest, compounded annually (every year).
•Graph the function and include a screenshot. You may use Desmos.
•What is the F(t)-intercept (the y-intercept)?
•What does the intercept represent?