How do you write the standard from of the equation of the circle given center C(-3, -1) and has a radius of 7?
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 = - 3 , b = - 1 and r = 7
substitute these values into the standard equation.
#rArr(x+3)^2+(y+1)^2=49" is the equation"#