SOLUTION: This circle is centered at the origin, and the length of its radius is 4. What is the equation of the circle my response was x^2+y^2=4 but it came out wrong the other option

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: This circle is centered at the origin, and the length of its radius is 4. What is the equation of the circle my response was x^2+y^2=4 but it came out wrong the other option      Log On


   



Question 144898: This circle is centered at the origin, and the length of its radius is 4. What is the equation of the circle
my response was x^2+y^2=4 but it came out wrong
the other options were
x^2/4 + y^2/4 = 1
or
x^2 + y^2 = 4^2
or
(x-4)^2 + (y-4)^2 = 16

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Ans: x^2 + y^2 = 4^2
I don't see that as one of the options but it is the answer.
Cheers,
Stan H.