Question

The unit circle has center
(x, y) = [ ] and a radius of [ ]

Answer 1

The center is always the origin.

Answer 2

It's called the "unit" circle because every point on the circle is one unit away. So the radius is 1.

Answer 3

origin = (0,0) and radius = ?

Answer 4

Oh. Okay.

Answer 5

I forgot I had this up; solved it already before I'd remembered I hadn't edited this.