What value of x will make the function x 4 - x ... - JAMB Mathematics 2009 Question
What value of x will make the function x(4 - x) a maximum?
A
4
B
3
C
2
D
1
correct option: c
x(4 - x)
4x - x2
\(\frac{dy}{dx}\) = 4 - 2x
\(\frac{dy}{dx}\) = 0
2x = 4
x = \(\frac{4}{2}\)
= 2
4x - x2
\(\frac{dy}{dx}\) = 4 - 2x
\(\frac{dy}{dx}\) = 0
2x = 4
x = \(\frac{4}{2}\)
= 2
Please share this, thanks:
Add your answer
No responses