The interval in which the function f(x) = x² − 4x + 6 is strictly decreasing is: A. (−∞, 2) B. (2, ∞) C. (−∞, 4) D. (4, ∞) Answer: A) (−∞, 2) Explanation: f'(x) = 2x − 4. f'(x) < 0 → 2x < 4 → x < 2. So decreasing on (−∞, 2).

imo class 12 application of derivatives

The interval in which the function f(x) = x² − 4x + 6 is strictly decreasing is:

VAVidaara Admin Asked 6d ago 0 views 0 answers

The interval in which the function f(x) = x² − 4x + 6 is strictly decreasing is:

Answer: A) (−∞, 2)

Explanation: f'(x) = 2x − 4. f'(x) < 0 → 2x < 4 → x < 2. So decreasing on (−∞, 2).