What is the equation of a circle with center (2,-8) and radius 9?

Question

Mathematics

Nelson Williamson

10 September, 10:06

What is the equation of a circle with center (2,-8) and radius 9?

+2

Answers (2)

Know the Answer?

Joyce Hardy · Answer 1

x2+y2-4x+16y-13

Step-by-step explanation:

center (h, k) = 2,-8

radius (r) = 9

we know

(x-h) 2 + (y-k) 2=r2

now insert above given information

(x-2) 2 + (y+8) 2=9*9

Kash Daniel · Answer 2

9^2 = (x+2) ^2 + (y+8) ^2

Step-by-step explanation:

The equation is r^2 = (x+h) ^2 + (y-k) ^2