SOLUTION: Write an equation of a circle that is tangent to the y-axis and has its center at (-8,-7)

Algebra ->  Rational-functions -> SOLUTION: Write an equation of a circle that is tangent to the y-axis and has its center at (-8,-7)      Log On


   

Question 990450: Write an equation of a circle that is tangent to the y-axis and has its center at (-8,-7)
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
The distance from the center (-8,-7) to the y axis is 8,
so the radius is 8.
.
%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2
.
(h,k) is the center. so (h,k)=(-8,-7) and r=8:
.
%28x%2B8%29%5E2%2B%28y%2B7%29%5E2=8%5E2
.
%28x%2B8%29%5E2%2B%28y%2B7%29%5E2=64