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Find the coordinates of the vertex of the following parabola algebraically.  Write your answer as an (x,y) point.

 

y = x^2 + 2x + 8.

 Mar 17, 2021
 #1
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y = x^2 + 2x + 8

y = (x+1)^2 + 7

So our vertex is -1, 7 (-1 + 1 = 0, and 7 = 7)

 

=^._.^=

 Mar 18, 2021

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