Hi Severoth!

To standard equation for a circle with its radius \( r\), and center \((h,k)\) is:

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

Since your circle has a center \((-1,2)\) and a radius \(3\),

The equation will be:

\((x+1)^2+(y-2)^2=9\)

I hope this helps,

Gavin.