Question

PLEASE HELP!!!!!!!What is the standard form of the equation of the circle in the graph?

Answer 1

X^2+y^2=9

because it is at the origin and radius is 3

Answer 2

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!