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Trigonometry 18 Online
OpenStudy (anonymous):

find the vertex of the quadratic function y=x^2+8x+11

jimthompson5910 (jim_thompson5910):

to find the x coordinate of the vertex, you use this formula x = -b/(2a)

jimthompson5910 (jim_thompson5910):

in this case, a = 1 and b = 8

jimthompson5910 (jim_thompson5910):

tell me what you get

OpenStudy (ja1):

\[\frac{ -b }{ 2a }\]

OpenStudy (ja1):

So like jim said, just substitute the values into the equation above

OpenStudy (ja1):

@Sasha_97

OpenStudy (ja1):

Are you still here or are you solving the problem?

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