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anonymous
 5 years ago
givrn: y=2x^2 4x+3 find the vertex
anonymous
 5 years ago
givrn: y=2x^2 4x+3 find the vertex

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use \[\frac{b}{2a}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in your example a = 2, b = 4 and \[\frac{4}{2\times 2}=1\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0first coordinate of the vertex is 1, second is what y ou get when you replace x by 1, 24+3=1 so vertex is (1,1)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what would be the intercept

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0there is no x intercept since this is a parabola that faces up and the vertex is above the x  axis

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the yintercept is what you get when you replace x by 0, which is the constant . in this case it is 3, so yintercept is (0,3)
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