Question

How do you write an equation of a circle with Center (3, -2), radius = 5?

Answer 1

`(x-3)^2+(y+2)^2=25`

Explanation:

`C=(a,b)" coordinates of center of circle"`

`(x-a)^2+(y-b)^2=r^2" circle equation"`

`a=3" "b=-2" "r=5`

`(x-3)+(y+2)=5^2`

`(x-3)^2+(y+2)^2=25`