-1
\(-\frac{1}{2}\)
\(\frac{1}{2}\)
1
Correct answer is B
x\(^2\) + x + 1
\(\frac{dy}{dx}\) = 2x + 1
At the turning point, \(\frac{dy}{dx}\) = 0
2x + 1 = 0
x = -\(\frac{1}{2}\)
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