Hana deposited a fixed amount into her bank account each month. The function f (t) = 100 + 25t 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. With each monthly deposit, the amount in Hana's bank account increased by $25.
- A. With each monthly deposit, the amount in Hana's bank account increased by $25.
- B. Before Hana made any monthly deposits, the amount in her bank account was $25.
- C. After 1 monthly deposit, the amount in Hana's bank account was $25.
- D. Hana made a total of 25 monthly deposits.
Explanation
Choice A is correct. It's given that t represents the number of monthly deposits. In the given function f (t) = 100 + 25t , the coefficient of t is 25. This means that for every increase in the value of t by 1, the value of f increases by 25. It follows that with each monthly deposit, the amount in Hana's bank account increased by $25.
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