SOLUTION: find the radius r and the center (h,k) of the following circle 3(x-3)^2 + 3y^2 = 75

Question 310641: find the radius r and the center (h,k) of the following circle
3(x-3)^2 + 3y^2 = 75
Found 2 solutions by nerdybill, Fombitz:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
find the radius r and the center (h,k) of the following circle
3(x-3)^2 + 3y^2 = 75
.
Circle equation:

where
(h,k) is the center
r is the radius
.
Starting with what was given:

Dividing both sides by 3:

.
center is at (3,0)
radius is 5

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Compare to the general equation of a circle of radius R centered at (h,k),

.
.
.
(h,k)=(3,0)
R=5

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