Question

Could you help me out with a question

Answer 1

Answer: Sure. What is your question?

Explanation:

Answer 2

The standard form of a circle is

`x^2+y^2=r^2`

Where r is the radius.

As you can observe 3 to the square power is equal to 9, which means the correct equation is the last option.

`x^2+y^2=9`