A function is matched below against an interval where it is supposed to be increasing. Which of the following pairs is incorrectly matched? I n t er v a l → F u n c t i o n

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Clearly function f ( x ) = 3 x 2 − 2 x + 1 is increasing when f ′ ( x ) = 6 x − 2 ≥ 0 ⇒ x ∈ [ 1/3 , ∞ ) Hence ( C ) is incorrect.

Mathematics - Application of Derivative Question with Solution | TestHub

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