← CAT 2020 Slot 2 QA

CAT 2020 Slot 2 QA · Question 14

Let f(x) = x2 + ax + b and g(x) = f(x + 1) - f(x - 1). If f(x) ≥ 0 for all real x, and g(20) = 72, then the smallest possible value of b is

  1. A.
    16
  2. B.
    1
  3. C.
    4
  4. D.
    0

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