📅 NSB 2019🎓 HS🔄 Round 17#️⃣ Q10🌟 BONUS✍️ Short Answer
f of x is a twice-differentiable function such that f prime of x and f double prime of x are both less than 0 for all real numbers. If f of 3 equals 22 and f of 5 equals 17, what is the largest possible integer value for f of 9?
✔️Answer:6
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