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Question 42689: PRETTY PLEASE AGAIN
consider the circle given by x^2 + (y+1)^2=9
a)
Give the center aND RADIUS OF THE CIRCLE
CENTER?_______________
rADIUS?________________
Found 2 solutions by rapaljer, Nate:
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! An equation in the form  is the equation of a circle, whose radius is r, and whose center is at (h,k). In other words, you have to ZERO out the quantities that are squared, and those are the values that gives the center of the circle.
In your case, the center is at x=0 and y = -1, and the radius is r^2= 9, so r=3.
R^2 at SCC
Answer by Nate(3500)  (Show Source):
You can put this solution on YOUR website! Standard form: (x - h)^2 + (y - k)^2 = r^2
(h,k) is your center while  is your radius
x^2 + (y + 1)^2 = 9
(x + 0)^2 + (y + 1)^2 = 9
center: (0,-1)
radius: 3
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