Question

A circle has its center at (-2, 5) and a radius of 4 units. What is the equation of the circle?

(x + 2)2 + (y - 5)2 = 16

(x + 2)2+ (y + 5)2= 16

(x + 2)2+(y - 5)2 = 4

(x - 2)2+(y + 5)2 = 4

Answer 1

which do you think?

Answer 2

A

Answer 3

Yup. You are right.

Answer 4

\( \color{Black}{\Rightarrow (x - h)^2 + (y - k)^2 = r^2}\)

The given is the equation of a circle with \((h,k)\) as the center and \(r\) as the radius.

You are right.