Test Academy | Find the interval in which function f(x) = x2 – 4x + 5 is increasing (-∞, 2), (2, ∞), (-∞, ∞), (3, ∞)

Question

Find the interval in which function f(x) = x2 – 4x + 5 is increasing

Options :

(-∞, 2)
(2, ∞)
(-∞, ∞)
(3, ∞)

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