Question

Find the coordinates for the center and length of radius for this circle.
(x - 4)2 + y2 = 12

Answer 1

center at (4,0)
radius is \[2\sqrt3\]

Answer 2

you need to learn the general equation for a circle is \[(x - h)^2 + (y - k)^2 = r^2\]

The centre is always (h,k) and radius is always r