Answer:
The initial amount in the account is $500.
Step-by-step explanation:
The amount of money in a savings account after t years is represented by the function f(t)=500(1.015)t.
General form of exponential growth function is
y is the accumulated amount
a is the initial amount in the account
r is the rate of interest
t is the time period
Here 500 is the initial amount in the account.