Question 965478
(h,k) is the centers of the circle.
since the center of rthe circle is at (-1,0), this means that:
h = -1
k = 0


the general form of the equation of a circle is (x-h)^2 + (y-k)^2 = r^2


(h,k) is the center of the circle.
r is the radius of the circle.


selection A and selection D fit this form.


of the two, selection D is the right one because:


(x+1)^2 + (y)^2 = 5 tells you that:


x+1 = x-h which makes -h = 1 which makes h = -1.


y = y-k which makes -k = 0 which makes k equal 0.


fyi:
0 has no sign.
-0 and 0 are the same value.


your solution is selection D.


the radius of that circle is sqrt(5).