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y=x2+16x+71 vertex form thank you 

Guest Mar 20, 2017
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y=x^2+16x+71    

 

Take 1/2 of the coefficient on x =(1/2) * 16  = 8....square this = 64....add and subtract it

 

x^2 + 16x + 64  + 71 - 64         factor the first three terms, simpify the last two

 

(x + 8)^2   + 7      this is vertex form.....the vertex is (-8, 7)

 

 

cool cool cool

CPhill  Mar 20, 2017

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