Question

Write an equation of a circle with the center (-5,-8) and radius 2.
a.(x-5)^2+(y-8)^2=2
b.(x+5)^2+(y+8)^2=4
c.(x-5)^2+(y-8)^2=4
d. (x+5)^2+(y-8)^2=2

Answer 1

the general formula is
(x-a)^2 + (y-b)^2 = r^2

where (a,b) is center and r is radius

so here (x+5)^2+(y+8)^2=4

Answer 2

Oh alright thanks, I forgot about the gen formula, havent done math in a long time

Answer 3

glad to help :)