Question

Does point (-6, -7) lie on the circle centered at (-2,-8), that contains the point (2, -9).

Answer 1

Equation of circle:
(x+2)^2 + (y+8)^2 = 17

Point (-6, -7)

(-6+2)^2 + (-7+8)^2 = 17
(-4)^2 + (1)^2 = 17
16 + 1 = 17
17 = 17

Answer is YES