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anonymous
 5 years ago
how do i find the vertex of a function?
anonymous
 5 years ago
how do i find the vertex of a function?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If it's a parabola of the form \[ax ^{2} + bx + c \] then the vertex is given by b/2a

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You don't find the vertex of a function, per se, you find the vertex of something, like a parabola, an ellipse, etc.

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0not all parabolas are functions ellipses aren't functions unless you have the left and right raduis is 0 and the up and down radius is 0 then its just a dot and so it is a function

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0my problem is find the vertex of f(x)=2x^2 it says find and label the vertex and the line of symmetry. do i have to graph it first?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0f(x)=2(x0)^2+0 vertex is (0,0)

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0i dont know how to find the lines of symmetry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but how do you know that? is it because there is no y intercept?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0i put the parabola in vertex form f(x)=a(xh)^2+k where (h,k) is the vertex

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0okay thanks. i got the symmetry part.

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0can you tell how you get symmetry part?

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0can we just since it is even it symmetric about x=0 or the yaxis

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes. its where ever the parabola can be split in half. theres a formula but i cant think of it off the top of my head so i just look at a graph and sometimes there is no line of symmetry

myininaya
 5 years ago
Best ResponseYou've already chosen the best response.0ok thanks nikki :) i put look for the formula later

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Symmetry is related to the odd, even function business. An f(x)=f(x) symmetric about the y axis. f(x)=f(x) symmetric about the origin.
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