Question

Write the equation of a circle with a center at (-3,-4) and a radius of 3?

Answer 1

The equation of a circle with center `(x_o,y_o)` and radius `r` is

`(x-x_o)^2+(y-y_o)^2=r^2`

hence in our case

`(x+3)^2+(y+4)^2=3^2`