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If the function f(x) = x2 − kx + 5 is increasing on [2, 4], then
Mathematics
Increasing and Decreasing Functions
Question
Updated
19 Aug 2026
If the function f(x) = x2 − kx + 5 is increasing on [2, 4], then
A
Choose Your Answer
A
k ∈ (2, \(\infty\))
B
k ∈ (−\(\infty\), 2)
C
k ∈ (4, \(\infty\))
D
k ∈ (−\(\infty\), 4).
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