What is the equation of a circle of radius 6 units centered at (2, 2)?
Choose the correct choice from the following.
A) x^2 + y^2 + 6x – 4y = 23	B) x^2 + y^2 - 6x + 4y = 23	C) x^2 + y^2 + 6x + 4y = 23	D) x^2 + y^2 - 6x – 4y = - 23	E) x^2 + y^2 - 4x – 4y = 28
the equation of a circle with center at (a,b) and radius R is (X-a)^2+(Y-b)^2=R^2   =&gt; answer = (X-2)^2+(Y-2)^2=6^2   solving,,we get the equation in answer choicex^2 + y^2 - 4x – 4y = 28.
<result>E</result>
What is the equation of a circle of radius 6 units centered at (2, 2)?