Question

A circle has its center at (-2, 5) and a radius of 4 units. What is the equation of the circle?

x + 2)2 + (y - 5)2 = 16

(x + 2)2+ (y + 5)2= 16

(x + 2)2+(y - 5)2 = 4

(x - 2)2+(y + 5)2 = 4

Answer 1

(x-h)2 + (y-k)2 = r2 gives you..?
(h and k are the coordinates, (h,k))

Answer 2

i dont get it

Answer 3

replace (h,k) you have with the h and k in the equation.. dont forget minus signs

Answer 4

The standard form for these circle equations is: (x-h)^2 + (y-k)^2 = r^2
You have h = -2, k = 5 and r = 4.

Answer 5

PLug them in. Bam. Done.

Answer 6

okay thanks