Thread: Meaning of B'(t)

Suppose that B(t) is the balance in a bank account (in dollars) t years after the account was established. What is the meaning of B'(t)?

I think the answer is the balance of bank account after the account was established. Is this correct

Originally Posted by asweet1

Suppose that B(t) is the balance in a bank account (in dollars) t years after the account was established. What is the meaning of B'(t)?

I think the answer is the balance of bank account after the account was established. Is this correct

No.

It would actually be the RATE at which the balance changes over time.