A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
The graph of which quadratic equation is shown below?
y = x^2 + 2x − 8
y = x^2 − 2x − 8
y = −x^2 − 2x + 8
y = −x^2 − 4x − 8
anonymous
 3 years ago
The graph of which quadratic equation is shown below? y = x^2 + 2x − 8 y = x^2 − 2x − 8 y = −x^2 − 2x + 8 y = −x^2 − 4x − 8

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Does the graph of x^2 open up or down? How about x^2? :)

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.0as its x^2 it will be open downwards like C and D

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0f(x) + C will affect the position on the y axis. Take this fact into consideration.

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.0yup the intercept on yaxis is when x = 0

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1368631726428:dw can you find the x intercepts?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0you should know the answer from this

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok, set everything I drew above to zero, that is like saying: When is Y zero? When Y is zero it touches the xaxis

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0it is zero when x = 2 and when x = 4

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0So then the answer is y = −x^2 − 2x + 8 I factored out the negative sign above.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0look at your graph, it's consistent with this

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0lol, just looking for someone to do your homework without effort, eh?
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.