Circle R has equation

(x + 10) 2 + (y - 10) 2 = 48. What

are the center and radius of

circle R?

A. center (-10,10), radius = 413

B. center (-10,10), radius = 48

C. center (10,-10), radius = 413

D. center (10,-10), radius = 48

The center is (-10,10) and the radius is 4sqrt (3)

Step-by-step explanation:

(x + 10) ^2 + (y - 10) ^2 = 48

We can write the equation of a circle as

(x - h) ^2 + (y - k) ^2 = r^2 where (h, k) is the center and r is the radius

(x - - 10) ^2 + (y - 10) ^2 = (sqrt (16*3)) ^2

(x - - 10) ^2 + (y - 10) ^2 = (4sqrt (3)) ^2

The center is (-10,10) and the radius is 4sqrt (3)