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anonymous
 one year ago
Using the completingthesquare method, find the vertex of the function f(x) = –3x2 + 6x − 2 and indicate whether it is a minimum or a maximum and at what point.
anonymous
 one year ago
Using the completingthesquare method, find the vertex of the function f(x) = –3x2 + 6x − 2 and indicate whether it is a minimum or a maximum and at what point.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i know you first put it in vertex form, but then how do you decide the max or mini thing

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0https://www.khanacademy.org/math/algebra/quadratics/featuresofquadraticfunctions/v/ex3completingthesquare Here's a video on how to do them

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2@mollzlask do you know how to find a vertex?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0once you get it in vertex form, yes

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2how about with the formula \(x=\dfrac{b}{2a}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so with that the vertex is 1,1 right?

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2the original equation is \(ax^2+bx+c=0\) in the equation you have, a = 3 , b = 6 , c = 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, so is that the minimum then?

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2look at a in your equation if it is positive, then it opens upwards and (1,1) is the minimum if it is negative, then it opens downwards and (1,1) is the maximum

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2so what do you have as a in your equation?

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2first tell me what a is in your equation

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2it's the coefficient of \(x^2\)

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2it has a negative sign in front of it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you for helping me!!

Mehek14
 one year ago
Best ResponseYou've already chosen the best response.2np so since a is negative, the parabola would open downwards, and (1,1) would be the maximum.
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