CSEC Additional Mathematics · 2018 · Paper 1 · Question Q3

Given that f(x) = 6 - x - 2x^2 is less than or equal to k, where k \in \mathbb{R}, then k is equal to

1. (A)-\frac{49}{8}
2. (B)-\frac{1}{4}
3. (C)\frac{1}{4}
4. (D)\frac{49}{8}