Question

If the center of a circle is at (5,-7)and its radius is 6, complete itsequation:(x- [ ? ]2 + (y -[])2 = []Enter

Answer 1

The equation of a circle is :

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

where (h, k) is the center and r is the radius.

From the problem, the center is at (5, -7) and the radius is 6

So the equation will be :

$(x-5)^2+\lbrack y-(-7)\rbrack^2=36$

The answers from left to right is 5, -7 and 36