## anonymous 5 years ago write the general form of the equation of the circle. center: (0,0) radius: 3 I got: sqrt(x^2 + y^2) = 3

1. anonymous

x^2 + y^2 = 9

2. anonymous

Nomss, you are correct, as long as you append: $\pm \sqrt{x^2+ y^2} = 3$

3. anonymous

$\sqrt{x^2+y^2}=3$ is only the upper half of the circle

4. anonymous

the standard form is what i wrote

5. anonymous

him1618 is exactly right.

6. anonymous

their answers are correct :) good luck

7. anonymous

actually this is what i had too: x^2 + y^2 = 9 thanks guys :)

8. anonymous

um no no. i need general form...

9. anonymous

generel form ? can u explain more ?

10. anonymous

Ax^2 + Ay^2 + Dx + Ey + F = 0 A != 0

11. anonymous

so you got it by yourself !

12. anonymous

Yeah, $x^2 + y^2 = 9$ is the general form

13. anonymous

Good job bro =D !