Question

What are the center and radius of a circle whose equation is:

Answer 1

Answer:

d)

Step-by-step explanation:

Equation of circle with center at point (h, k) and radius, r.

$(x - h)^2 + (y - k)^2 = r^2$

This problem:

(x − A)^2 + (y − B)^2 = C

The center is (A, B).

The radius is sqrt(C).

Answer: d)