SOLUTION: Find the missing characteristics of the center of the circle with the given characteristics. The center is (-3,b), the radius is 5, and point on the circle is (2,-2). I found the

Algebra ->  Circles -> SOLUTION: Find the missing characteristics of the center of the circle with the given characteristics. The center is (-3,b), the radius is 5, and point on the circle is (2,-2). I found the      Log On


   



Question 548617: Find the missing characteristics of the center of the circle with the given characteristics.
The center is (-3,b), the radius is 5, and point on the circle is (2,-2). I found the missing coordinate counting squares but i want to do it algebraicly.

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
The center is (-3,b), the radius is 5, and point on the circle is (2,-2).
use distance formula
Distance between two points
x1 y1 x2 y2

-3 b 2 -2
d= sqrt%28%28y2-y1%29%5E2%2B%28x2-x1%29%5E2%29
d^2= ((-2-b)^2+(2-(-3))^2
25=4+4b+b^2+25
(b+2)^2=0
b=-2