A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
What is the vertex form of the equation?
y=x^2+4x3
Can you explain how to do this?
anonymous
 one year ago
What is the vertex form of the equation? y=x^2+4x3 Can you explain how to do this?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0To start off, let's factor out the two from 2x^2 + 4x. y = 2*(x^2 + 2x)  3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now, we need to complete the square for what is in the parenthesis, so that we can get something off the form (xh)^2. y = 2*(x^2 + 2x + 1)  3 BUT, we added a 1 in the parenthesis, which when multiplied by the two adds 2 to the right hand side, so we need to add 2 to the left hand side also, giving us:

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0y + 2 = 2*(x^2 + 2x + 1)  3 y + 2 = 2*(x + 1)^2  3 y = 2*(x+1)^2  5 And there you go. :)
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.