What is the <strong>MINIMUM</strong> value of the function f(x)=\log_{10}(x^{2}+2x+11)?
- A. 0
- B. 1 ✓
- C. 2
- D. 10
Correct Answer: B. 1
Explanation
Rewrite the quadratic expression inside the logarithm by completing the square: x^2+2x+11 = (x+1)^2+10. Since (x+1)^2 \geq 0, the minimum value of the quadratic is 10. Therefore, the minimum value of the function is \log_{10}(10) = 1.
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