Question

Find the equation of the circle with the given characteristics.

Center: (-2, -1) Radius: 1
The solution is

Answer 1

`(x+2)^2+(y+1)^2=1`

Explanation:

Equation of a circle:

• 
  `(x-h)^2+(y-k)^2=r^2`
• Center ==>
  `(h,k)`
• Radius ==>
  `r`

Plug in known information:

`(x-h)^2+(y-k)^2=r^2`

`(x-(-2))^2+(y-(-1))^2=(1)^2`

`(x+2)^2+(y+1)^2=1`