Question

Given the equation of a circle below, what is the length of the radius?

(x - 3)² + (y + 5)² = 16

Answer 1

4

Explanation:

x - 3)² + (y + 5)² = 16

sol

16^(1/2)

Answer 2

Answer: 4

Explanation:

Formula for a circle

(x-h)² + (y-k)² = r²

Your equation (x - 3)² + (y + 5)² = 16 has =16 which means

r²=16 >take square root

r = 4