easiest way:
centre is (-1,8) , so the equation is
(x+1)^2 + (y-8)^2 = r^2
sub in the given point (9,3)
r^2 = 10^2 + (-5)^2 = 125
(x+1)^2 + (y-8)^2 = 125
Write the equation of each circle.
Center at (-1,8) passes through (9,3)
3 answers
thanks reiny
Write an equation for a circle with center at (–8, 4) and diameter 2.