Open Desmos
Click the expression line
Enter a circle equation such as `(x-h)^2+(y-k)^2=r^2`
Replace `h` and `k` with the center coordinates
Replace `r` with the radius
Press Enter
Open Desmos
Click the expression line
Enter a circle equation such as `(x-h)^2+(y-k)^2=r^2`
Replace `h` and `k` with the center coordinates
Replace `r` with the radius
Press Enter