# A circle passes A(-4,-1) and B(2,1). How do you find the center and radius of this circle if the center of the circle is on y-axis?

##### 1 Answer

Mar 28, 2018

graph{x^2 +(y+3)^2=20 [-10, 10, -5, 5]}

Given that the center of the circle is on y-axis (

So

Hence coordinates of the center (O) is (-3,0).

And radius