Question

Find the equation for the circle with center (-2,4) and passing through (-1,- 4).

Answer 1

(x+2)^2 + (y-4)^2 = 65

Explanation:

r^2 = (4-(-4))^2 + (-1-(-2))^2 = 65

center = (-2, 4) so you add 2 to x and subtract 4 from y