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The parabola y = x^2 + bx + c has a vertex at (-4,8).  Find b + c.

 Jul 4, 2021
 #1
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Vertex form of parabola

 

y = a (x+4)^2 + 8        a = 1 in this case

 

y = x^2 + 8x + 16 + 8        you can finish this I am sure !  

 Jul 4, 2021

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