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Mathematics 13 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

Directrix (directrix):

Hey, somebody has already written on my grid.

Directrix (directrix):

It is okay. Whoever wrote on it located the points correctly.

OpenStudy (anonymous):

Sorry, but not sorry. I located the center and the point it passes for you! (:

Directrix (directrix):

Do you have work to post on what you got?

OpenStudy (anonymous):

What do you need ? the center is (-1,-2) Radius: 4.1

OpenStudy (anonymous):

can I just put 4?

Directrix (directrix):

As I recall, I did those calculations. I need something to check this.

Directrix (directrix):

No, I would not just put 4.

OpenStudy (anonymous):

Equation: (x+1)^2 + (y+2)^2= 16

Directrix (directrix):

If you use 4 for the radius, then the equation for the circle is wrong. It should be (x+1)^2 + (y+2)^2= 17 --> Seventeen

OpenStudy (anonymous):

Okay. I got it.

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