How do you write the equation for a circle with center (-2,-3) and r = 3?
The equation of a circle is:
The standard form of the equation of a circle is.
where (a ,b) are the coordinates of the centre and r, the radius.
here a = -2 , b = -3 and r = 3
Substitute these values into the standard equation.
#rArr(x+2)^2+(y+3)^2=9" is the circle's equation."#