SOLUTION: What is an equation of the circle with center (0,3) and a diameter 6?

Algebra ->  Circles -> SOLUTION: What is an equation of the circle with center (0,3) and a diameter 6?      Log On


   

Question 474601: What is an equation of the circle with center (0,3) and a diameter 6?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
an equation of the circle with center (a,b) and radius r
%28x-a%29%5E2%2B%28y-b%29%5E2=r%5E2
a diameter of a circle is 6, the the radius r=d%2F2=6%2F2=3
an equation of the circle with center (0,3) and radius 3
%28x-0%29%5E2%2B%28y-3%29%5E2=3%5E2
x%5E2%2B%28y-3%29%5E2=9