A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
What is the equation of the line of symmetry for the graph of y = 3(x + 2)^2  4?
x = 4
x = 2
x = 2
x = 3
anonymous
 5 years ago
What is the equation of the line of symmetry for the graph of y = 3(x + 2)^2  4? x = 4 x = 2 x = 2 x = 3

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0here we are looking for the x coordinate of the vertex. y=a(x h)^2 +k where the vertex is given by (h,k) so with your equation what will the x symmetry line be?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0close if I put x=2 back into the equation I will get this y=a(x 2)^2 +k but we have y = 3(x + 2)^2  4 so x=2. to check put it back into the equation y=a(x (2))^2 +k y=a(x +2)^2 +k

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ohhh i see... thank you

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0also. the vertex = b/2a, that will give you the line of symmetry x coord also since the vertex is directly in the middle :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.