Check?
Find the center and radius of the given circle
1. x^2+y^2+10y+21=0
= 5
3 answers
Correct.
Radius is 5 at least. (1,5) is center
Howzat?
x^2 + (y+5)^2 = 4
center is at (0,5), radius is 2
x^2 + (y+5)^2 = 4
center is at (0,5), radius is 2
1 answer