Question

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Answer 1

An ellipse look for equation of ellipse online :P

Answer 2

\[(x -x1) ^{2} \div a ^{2} + (y-y1)^{2} \div b ^{2} = 1\]


its basic form of equation of ellipse with origin shifted from origin to (x1,y1)
and major axis = 2a
minor axis = 2b

I think this will definately get u to the solution

Answer 3

find the center of your graph...
the equation of your ellipse is in this form: \(\large \frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1 \)
where (h, k) is the center and "a" and "b" is exactly what @mayank_mak says....

Answer 4

@coolaidd From the graph, count and you'll find:
(h, k) = ( 2, 2 ) 2a = 6 , 2b = 4
Plug these numbers into the standard ellipse form as provided above: ..

Answer 5

these are the choices

Answer 6

You have an ellipse here. (think of it as a flattened circle). Google "Equation of ellipse" and then fill in the formula with the given center, major and minor axis. :)

Answer 7

c?

Answer 8

hello?

Answer 9

Are you allowed to use a graphing calculator to graph these?

Answer 10

To really get a feel for what these different equations represent, it's usually good to graph a bunch and see how the equation changes the shape of the ellipse. :)

Answer 11

I dont have one..

Answer 12

is it c?

Answer 13

You can use geogebra, it doesn't even require an installation. :) or type the equations into http://www.wolframalpha.com

and no, it's not c. If it's centered at (2,2) then you're going to have (x MINUS 2) and (y MINUS 2)

Answer 14

a?

Answer 15

Hold on, I'm plotting them with geogebra...

Answer 16

If you'd like to know how to use geogebra to graph stuff like this, just let me know, I'd be glad to show you. It's SUPER useful for all sorts of graphing problems.

Answer 17

D

Answer 18

@coolaidd u can try B also.