QUESTION 2 The amount of money in an investment account is modeled by the function f(1') = 100(1 .045)r , where f(t) is in dollars and t is in years since January 1, 2021 . At what rate is the investment growing at t=6 months? 0 $4.50 per month 0 $3.50 per month 0 $4.60 per month 0 $3.80 per month