Question

Which equation describes the circle
with center (5,-1) and radius 7?

Answer 1

B

Explanation:

circle equation is :

`(x - a) ^(2) + (y - b) ^(2) = r^(2)`

With (a) being the x coordinate of the centre and (b) being the y coordinate of the centre, r is the radius;

make sure to square the radius when using it in this formula