Question

What is the equation of a circle with center (8,1) and radius 6?

A. (x - 3)2 + (y - 1)2 = 6
B. (x - 3)2 + (y - 1)2 = 36
C. (X + 8)2 + (y + 1)2 = 36
D. (X + 8)2 + (y + 1)2 = 6

Answer 1

(x - 8)2 + (x - 1)2 = 36

Answer 2

(x - 8)² + (y - 1)² = 36

None of the above

Explanation:

Equation of a circle:

(x - h)² + (y - k)² = r²

(x - 8)² + (y - 1)² = 6²

(x - 8)² + (y - 1)² = 36