Question

What is the center of the circle (x + 2)2 + (y - 5)2 = 2.25?

Answer 1

This equation of the circle is in a center-radius form which is more generally written as,
(x - h)² + (y - k)² = r²
From the equation, the center of the circle is (h,k) and r is the radius. From the given equation above, the center of the circle is (-2,5).