Question

Given center C and a point P on a circle, find its equation. C(-2,7) and P (1,11)

A) (x-1)2+(y-11)2=5
B) (x+2)2+(y-7)2=5
C) (x-1)2+(y-11)2=25
D) (x+2)2+(y-7)2=25

Answer 1

the only left one is the distance or radius so to find this find under square root (x2-x1)²+(y2-y1)² then you gate r=5,R²=25 so the correct answer is d