SOLUTION: Write an equation of a circle that has a center (-1,-3) and is tangent to the line 3x+y= -1

Algebra ->  Circles -> SOLUTION: Write an equation of a circle that has a center (-1,-3) and is tangent to the line 3x+y= -1      Log On


   

Question 753011: Write an equation of a circle that has a center (-1,-3) and is tangent to the line 3x+y= -1
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
L: 3x+y+1=0 and P: (-1,-3)
The perpendicular distance from L to P is to be the radius:



From the equation of a circle:

%0D%0A%28x%2B1%29%5E2%2B%28y%2B3%29%5E2=5%2F2%0D%0A

:)