Answer:

Step-by-step explanation:
Circle is centred at (0, -2)
-> h = 0 & k = - 2
radius of the circle (r) = y-coordinate of the center = - 2
Equation of circle in standard form is given as:

Plugging the values of h, k and r in the above equation, we find:
![(x-0)^2 +[y-(-2)]^2 = (-2)^2](https://tex.z-dn.net/?f=%28x-0%29%5E2%20%2B%5By-%28-2%29%5D%5E2%20%3D%20%28-2%29%5E2)

This is the required equation of circle.
Answer:
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Step-by-step explanation:
Answer:
- B. g(x) = (x - 2)^(1/2) + 3
Step-by-step explanation:
<u>This is B</u>
- (x - 2) is not negative and defined when x≥0
- g(x) gets minimum value of 3 at minimum value of x = 2