Hana deposited a fixed amount into her bank account each month. The function f t = 100 + 25 t

Question

Hana deposited a fixed amount into her bank account each month. The function f t = 100 + 25 t gives the amount, in dollars, in Hana's bank account after t monthly deposits. What is the best interpretation of 25 in this context?

Accepted Answer

Choice A is correct. It's given that t represents the number of monthly deposits. In the given function f t = 100 + 25 t , the coefficient of t is 25 . This means that for every increase in the value of t by 1 , the value of f t increases by 25 . It follows that with each monthly deposit, the amount in Hana's bank account increased by $ 25 . Choice B is incorrect. Before Hana made any monthly deposits, the amount in her bank account was $ 100 . Choice C is incorrect. After 1 monthly deposit, the amount in Hana's bank account was $ 125 . Choice D is incorrect and may result from conceptual errors.

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