Question

What is the general equation of a circle centered at the origin?

Answer 1

I'm stumped because there is no other information. This is literally the whole question.

Answer 2

x^2+/- y^2 = r^2

Answer 3

Sorry not plus or minus... just plus

Answer 4

So x^2+/ y^2 = r^2?

Answer 5

Or x^2/ y^2 = r^2 ??

Answer 6

(x-a)2 + (y-b)2 = r2 if it is not centered at origin

TO your reply..
No x^2+y^2=r^2

Answer 7

You are talknig about conics aren't you?

Answer 8

I don't think so. I believe it's just circles.

Answer 9

x^2 + y^2 = r^2

Answer 10

It seems to me that this question is like an intro for conics, at least that's what my teacher did... Well anyways, that is the best mathematical response I could think of. Best of luck my friend

Answer 11

@Krinkov