Question

PLEASE HELP!!!!!!!

What is the standard form of the equation of the circle in the graph?

Answer 1

Hi there!
The standard form of the equation of a circle is:
`(x-a)^(2) + (y-b)^(2) = r^(2)`

With (a, b) representing the centre and r representing the radius of the circle. Since the centre of the circle is (0, 0) and the radius is 3, we get the following equation:

`(x-0)^(2) + (y-0)^(2) = 9 \\ x^(2) + y^(2) = 9`

~ Hope this helps you!