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Complete the square to rewrite y = x2 + 8x + 7 in vertex form, and then identifythe minimum yvalue of the function.A. The minimum value is -2.B. The minimum value is -9.C. The minimum value is -23.D. The
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Complete the square to rewrite y = x2 + 8x + 7 in vertex form, and then identifythe minimum yvalue of the function.A. The minimum value is -2.B. The minimum value is -9.C. The minimum value is -23.D. The minimum value is -4.

User Harukaeru
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1 Answer

5 votes

Given


y=x^2+8x+7

Now,


\begin{gathered} x^2+8x+7=x^2+8x+16-9 \\ =(x+4)^2-9 \end{gathered}

User Afshin Moazami
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