Question

The circle below is centered at the point (-3,4) and had a radius of 3. What is it equation? ( top answers gets )

Answer 1

( x+3) ^2 + ( y-4) ^2 = 9

Explanation:

The equation of a circle can be written as

( x-h) ^2 + ( y-k) ^2 = r^2

Where ( h,k) is the center and r is the radius

( x--3) ^2 + ( y-4) ^2 = 3^2

( x+3) ^2 + ( y-4) ^2 = 9