Question

The equation of the circle whose center is at (4,4) and whose radius is 5 is
a. (x + 4)² + (y + 4)² = 5
b. (x + 4)² + (y + 4)² = 25
c. (x - 4)² + (y - 4)² = 25

Answer 1

c

Answer 2

A general form for the equation of a circle with radius \(r\) and center at \((h,k)\) is

\[(x-h)^2 + (y-k)^2 = r^2\]