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Black Book Advanced Problems in MathematicsMathematicsQuadratic Equation

The graph of quadratic polynomial f(x) = ax^2 + bx + c is shown below :

Options

  1. Ac a | - | < -2
  2. Bf(x) > 0 x >
  3. Cac > 0
  4. Dc a > -1 .

Correct answer

A. c a | - | < -2

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