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 _____.

Question

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 _____.

anonymous · Answer

attachment

anonymous · Answer

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

anonymous · Answer

because it's the radius?

anonymous · Answer

No...

anonymous · Answer

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

anonymous · Answer

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 $r$).

anonymous · Answer

and the answer is . . .:/ @yankeyglee

anonymous · Answer

@snorl4x  can you help me with this

anonymous · Answer

@jigglypuff314