Çözüldü Circle Equation - Analytic Geometry

A circle has a radius of 10, and the x-coordinate of the center in the xy-plane is −2. Two points on the circumference of the circle are (6, 9) and (−8, −5). What is the y-coordinate of the center?

A) −3
B) 0
C) 3
D) 8

Radius is unnecessary for the solution because the equation (-2 + 8)^2 + (y + 5)^2 = (-2 - 6)^2 + (y - 9)^2 already yields y = 3.

The Solution in The Book:

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