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gfields444
Group Title
What is the equation of the line of symmetry for the graph of y = 3(x + 2)2 – 4?
 one year ago
 one year ago
gfields444 Group Title
What is the equation of the line of symmetry for the graph of y = 3(x + 2)2 – 4?
 one year ago
 one year ago

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eseidl Group TitleBest ResponseYou've already chosen the best response.1
The line of symmetry is the line that goes through the vertex of this parabola. Do you know how to find the vertex?
 one year ago

eseidl Group TitleBest ResponseYou've already chosen the best response.1
Your equation is already given in what is called "vertex form". Given:\[y=a(xh)^2+k\]The vertex is the point (h,k).
 one year ago

gfields444 Group TitleBest ResponseYou've already chosen the best response.0
Ohhh! Okay got it!
 one year ago

eseidl Group TitleBest ResponseYou've already chosen the best response.1
So, what's the vertex?
 one year ago

eseidl Group TitleBest ResponseYou've already chosen the best response.1
And remember that once you have the vertex, you still need to find the line of symmetry.
 one year ago

eseidl Group TitleBest ResponseYou've already chosen the best response.1
x=2 is correct. Saying "2" doesn't tell us anything. Make sure you write x=2. This is a vertical line through the point (2,4). It cuts the parabola into symmetry halves. It is the line of symmetry for this parabola. Make sense?
 one year ago

gfields444 Group TitleBest ResponseYou've already chosen the best response.0
Ohh, thank you so much. You helped a ton!
 one year ago

eseidl Group TitleBest ResponseYou've already chosen the best response.1
no problem :)
 one year ago
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