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Mathematics 18 Online
OpenStudy (anonymous):

Center (-8, -3), radius = 2

OpenStudy (anonymous):

|dw:1374025209297:dw| and thats next to 2

Directrix (directrix):

See the attachment for more about standard form of a circle.

Directrix (directrix):

So, the radius is 2√3 ?

OpenStudy (anonymous):

yea

Directrix (directrix):

@adrian1220 Look at the attachment for how to set up the equation.

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