SOLUTION: f(x)=x^2+2x+1 minimum or maximum value?
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Question 1003462: f(x)=x^2+2x+1 minimum or maximum value?
Found 2 solutions by Alan3354, fractalier:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The coefficient of the x^2 is + --> minimum.
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
A couple of ways to tell...
Since it curves concave up, it has a minimum...x = -b/2a = -2/2 = -1
Second derivative test...first derivative is 2x + 2...second derivative is 2 and always positive, hence it has a minimum...
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