Find the standard form of the eqation of a circle whose center is at (2,5) and whose radius is 4.

chilledz3non May 27, 2016

#1**+10 **

Best Answer

The standard form of the equation of a circle whose center is (h, k) and whose radius is r is:

(x - h)^{2} + (y - k)^{2} = r^{2}

Since the center is (2, 5), h = 2 and k = 5; since the radius is 4, r = 4:

(x - 2)^{2} + (y - 5)^{2} = 4^{2} or (x - 2)^{2} + (y - 5)^{2} = 16

geno3141 May 27, 2016