Complete the equation of this circle:

9

Step-by-step explanation:

9

Step-by-step explanation:

the center of the circle is A(2,-2) , the radius is the distance from A( center to the circumference) is 3 points

(x-2)^2+(y+2)^2=r^2    r=3 so r^2=9

(x-2)^2+(y+2)^2=9

x is variable or an unknown value to find

example:

2x = 5 which means x = 3