A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
medal and Fan!!!!!!!!!!
Using the completingthesquare method, find the vertex of the function f(x) = –2x2 + 12x + 5 and indicate whether it is a minimum or a maximum and at what point.
anonymous
 one year ago
medal and Fan!!!!!!!!!! Using the completingthesquare method, find the vertex of the function f(x) = –2x2 + 12x + 5 and indicate whether it is a minimum or a maximum and at what point.

This Question is Closed

DanJS
 one year ago
Best ResponseYou've already chosen the best response.0do you know what the vertex form equation looks like ?

DanJS
 one year ago
Best ResponseYou've already chosen the best response.0You are given the parabola in the form y = ax^2 + bx + c need to turn into the form y = a(x  h)^2 + k by completing the square... The vertex is the point (h,k) read directly from the equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[f(x)=2x^2+12x+5\\=2(x^26x)+5\\=2(x^26x+99)+5\\=2(x3)^2+18+5\\=(x3)^2+23\\vertex\ cab\ be\ found\ out\ by\ puttin'\ x3=0\ \implies\ x=3(say\ \it\ h=3)\\for\ x=h=3, put\ f(x)=0\ get\ f(x)=23\ (say, \ k= 23)\\so\ vertex\ of \ function\ being\ a\ parabola\ is\ (h,k)=(3,23)\\ for\ minimum\ maximum\ use\ calculus\ \]
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.