SOLUTION: Find the center and radius of the circle then graph the following. a. (x-3)^2 + (y+9)^2 =9 b. x^2 +y^2 =1 c. (x+4)^2 + (y-4)^2 =4

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Find the center and radius of the circle then graph the following. a. (x-3)^2 + (y+9)^2 =9 b. x^2 +y^2 =1 c. (x+4)^2 + (y-4)^2 =4      Log On


   

Question 682673: Find the center and radius of the circle then graph the following.
a. (x-3)^2 + (y+9)^2 =9
b. x^2 +y^2 =1
c. (x+4)^2 + (y-4)^2 =4
Found 2 solutions by solver91311, lynnlo:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




is a circle centered at with radius .

It often helps to re-write the given equation, e.g.:



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Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
CENTER===============RADIUS
(1)(3,-9) 3
(2) (0,0) 1
(3) (-4,4) 2
NOW YOU SHOULD BE ABLE TO DO YOUR GRAPH