Equations of a Circle
posted by Some1 Help Me Plz .
Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the center and radius of the circle.
I have r=8, center=(8,8). What now?

Just state the equation...
(x8)^2 + (y8)^2= 64
mentally sub in each of the 3 points.
All satisfy the equation.