📅 NSB 2015🎓 HS🔄 Round 7#️⃣ Q12🌟 BONUS✍️ Short Answer
f(x) is a twice differentiable function where f prime of x is less than 0 and f double prime of x is less than 0 for all real numbers. If f(4) = 12 and f(5) = 9, what is the largest possible integer value for f(6)?
✔️Answer:5
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