Answer:
center = (-5, -7)
radius = 21
Step-by-step explanation:
Equation of a circle
[tex](x-a)^2+(y-b)^2=r^2[/tex]
where:
- (a, b) is the center
- r is the radius
Given equation:
[tex](x+5)^2 + (y+7)^2 = 21^2[/tex]
Comparing the given equation with the standard equation of a circle:
- center = (-5, -7)
- radius = 21
