Answer:
Explanation:
No given points, but you can figure it out from the equation of the circle:
Centered at the origin means that a = b = 0 in
(x-a)^2+(y-b)^2=radius^2
leaving the following:
x^2+y^2=10^2
or x^2+y^2=100
then, from the given points, plug in the coordinates and check to see if it satisfies the equation.
For example, we already know that (10,0) will be on the circle, since it is centered at the origin with radius 10. We can check by plugging into the equation: (10)^2+0^2=100
100=100, so the point lies on the circle.
Side note:
To find which points are within the circle, the equation x^2+y^2<10^2 would have to be satisfied. In this case, (9,0) is one of infinitely many points which satisfies this equation, and therefore is inside the circle.