MATH SOLVE

4 months ago

Q:
# The radius of the circle whose equation is (x - 3)² + (y + 1)² = 16 is A). 4 B). 8 C). 16

Accepted Solution

A:

The equation of a circle is written as (x-h)^2 + (y-k)^2 = r^2Where the center point of the circle is (h,k) and r is the radius.In the given equation 16 = r^2To find r take the square root of both sides:r = √16r = 4The answer is A.