Question 702069
The general form of the equation of a circle is (x−h)^2+(y−k)^2=r^2, where (h,k) is the center point and r is the radius. This is used in the coordinate plane. Therefore, we just need to plug in our numbers:


(x−h)^2+(y−k)^2=r^2
x^2 + y^2 = 5^2 (something minus 0 doesn't change that number)
x^2 + y^2 = 25.


This is the standard equation for a circle with radius 5.