Question

The center of the circle whose equation is (x + 2)² + (y - 3)² = 25 is

Answer 1

The center of the circle is at: C=(−2,3).

The radius of the circle is r=5.

Explanation:

A circle with center at (h,k) and a radius of r has equation (x−h)2+(y−k)2=r2.

In this example our circle equation can be written as:

(x−(−2))2+(y−3)2=(5)2

So, we have: h=−2 , k=3 and r=5.