Answer:
b = -2 +- sqrt(20)
Step-by-step explanation:
(x – h)2 + (y – v)2 = r2 is the equation you would most likely need.
(x + 1)^2 + (y + 2)^2 = 6^2
(3 + 1)^2 + (b + 2)^2 = 6^2
16 + (b + 2)^2 = 36
(b + 2)^2 = 20
b + 2 = sqrt(20)
b = -2 +- sqrt(20)
Hope this helps!