Question

What are the foci of the ellipse? Graph the ellipse.
Please help!

Answer 1

x^2/49+y^2/64=1

Answer 2

I think it is either A or C

Answer 3

I am leaning towards A, but I would like to confirm.

Answer 4

I am in this topic but I'm also searching for the method of calculating the foci of an ellipse.

Answer 5

Thanks for taking the time to help.

Answer 6

Well can you help?

Answer 7

I found an online graphing program for an ellipse.
Here's the graphic:

Answer 8

So I was right,thank you for your time.

Answer 9

I do need help with one more question

Answer 10

Could you help my last question?

Answer 11

Well okay. (I never knew about that online graphing program until 2 minutes ago).
:-)

Answer 12

What is it called?

Answer 13

What is the standard form equation of the ellipse with vertices at (0,6) and (0,-6) and co-vertices at (4,0) and (-4,0).

Answer 14

I just need help with this one question and it will be done.

Answer 15

The online graphing program?
http://www.webgraphing.com/ellipse.jsp
WOW that does a good job doesn't it?

Okay - seems you have posted the other problem.

Answer 16

I really really thank you for your help.

Answer 17

That website may come in handy later.

Answer 18

I'm still searchnig for the answer for that question about the vertices.

Answer 19

I as well.

Answer 20

so

Answer 21

I think it's either b or c

Answer 22

I'm leaning towards B, what do you think?

Answer 23

It definitely would be centered at zero (if that helps you at all).
I'm still trying to see how to write the equation from vertices and co-vertices.
Will you have to get going soon?

Answer 24

No, I have a lot of time.

Answer 25

Well I can continue researching how to write the equations.
GEEZ - the way websites organize their data and explanations can be really bad.

Answer 26

Just trying to figure this out.

Answer 27

I know, I'm trying to figure it out through mathway,and wolframalpha

Answer 28

It's kind of disgruntling,but with time hopefully I can find the answer.

Answer 29

It would be really great IF one website would just state PLAINLY:
"if you know the vertices, you generate the equatiion by putting vertex 1 HERE and vertex 2 HERE."
but do they do that? NO!!!

Answer 30

Right! The things I hate about these websites is they put too much weight on the java and or shockwave driver, causing your browser to slow down.

Answer 31

Sadly there is nothing you can do about it because it is just a plugin, there would need to be a better website or a new plugin all together.

Answer 32

There needs to be a website that simplifies it not only for the student, but for the browser.

Answer 33

But any way, did you find any leads on the answer?

Answer 34

Hey I was right about it being B.

Answer 35

I solved it

Answer 36

And I got 100%, thanks to you!

Answer 37

Thanks. I got thrown off Open Study. ARRGGHH!!
Well I'm glad you got the answer.
Tell you what- I'll give YOU a medal for your patience with me.
(I'm usually much quicker that this.)

Answer 38

THAN this

Answer 39

Well time for me to quit OpenStudy.
Maybe I'll see you again.
See you later.
:-)