Hana deposited a fixed amount into her bank f(t)= account each month. The function 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?
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
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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