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Mathematics

OpenStudy (anonymous):

Dora wrote the equation of the circle in the center radius form as (x − p)2 + (y − q)2 = 16. The value of p + q is _____.

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OpenStudy (anonymous):

OpenStudy (anonymous):

Hint: The point \((p,q)\) is the center of the circle. (Why is that?)

OpenStudy (anonymous):

because it's the radius?

OpenStudy (anonymous):

No...

OpenStudy (anonymous):

i have no idea. can i have another hint maybe?

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OpenStudy (anonymous):

Well, knowing \((p,q)\) is the center of the circle is enough for you to figure this out. The general form of the circle \(x^2+y^2=r^2\) becomes your equation when you translate it right by \(p\) units and up \(q\) units. (Then, separately, applying the right value of radius \(r\)).

OpenStudy (anonymous):

and the answer is . . .:/ @yankeyglee

OpenStudy (anonymous):

@snorl4x can you help me with this

OpenStudy (anonymous):

@jigglypuff314

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