Question

Find the equation of the circle with center at (-1,-4) and radius of 2.

a. (x - 1)2 + (-4)2 = 4
C. (x + 1)2 + (y + 4)2 = 2
b. (x + 1)2 + (+4)2 = 4
d. (x-1)2 + (1 - 4)2 = 2

Answer 1

(x + 1)² + (y + 4)² = 4

Explanation:

(x - a)² + (y - b)² = r²

with a and b respectively the coordinates of the center point of the circle and r the raduis