Ask a New Question

Asked by Ray

Center and radius of x^2 + y^2 – 4y = 0.
15 years ago

Answers

Answered by Henry
STD Form of Circle:
(x - h)^2 + (y - k)^2 = r^2, C(h , k).

x^2 + y^2 - 4y = o,
Complete the square:
x^2 + y^2 - 4y + (-4 / 2)^2 = (-4/2)^2,
x^2 + y^2 - 4y + 4 = 4,
Convert the perfect sq to a binomial:
(x - 0 )^2 + (y - 2)^2 = 4 = r^2, r=2.
C(0 , 2).


15 years ago

Related Questions

What is the center and radius of the circle with the following equation: (x - 4)2 + (y + 3)2 = 100... center C has a radius of 13.Chord AB=10.find the distance from the center of the circle to chord AB... What is the center and radius of K(5,5) L(6,-2) M(2,-4) I try it but it's not equal to each oth... What is the center and radius of a circle with the given equation? x^2 + y^2 – 4x + 10y = 7 What is the center and radius of the circle given below: (x - 3)^2 + (y + 2)^2 = 16 What is the center and radius of the following circle: (x - 3)2 + (y + 2)2 = 25 What is the center and radius of the circle with the given equation? (x – 1)2 + (y + 1)2 = 4 (1... What is the center and radius of the​ circle? ​(xminus1​)squaredplusysquaredequals49 Question cont... What is the center and radius of the following circle? (x−4)^2+(y+2)^2=9 What is the center and radius of the circle with equation (x + 9)2 + (y + 5)2 = 64? center (5,...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use