Question

What is the equation of a circle with center (-3,-1) that contains the point (1,
2)?

Answer 1

(x+3)^2+(y+1)^2=25

Explanation:

the distance of the center and the point is the radius of the circle

distance=(4^2+3^2)^(1/2)=5

(x+3)^2+(y+1)^2=25