What value of x will make the function x(4 – x) a maximum?
- 4
- 3
-
2
- 1
The correct answer is: C
Explanation
x(4 - x)
4x - x2
\(\frac{dy}{dx}\) = 4 - 2x
\(\frac{dy}{dx}\) = 0
2x = 4
x = \(\frac{4}{2}\)
= 2
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