0
Find the centre and radius of the circle with equation x2 plus 2x plus y2 equals 12?
Wiki User
∙ 14y ago
x2 + 2x + y2 = 12 (complete the square)
(x2 + 2x + 1)+ y2 = 12 + 1
(x + 1)2 + y2 = 13 (divide by 13 each element to both sides)
(x + 1)2/13 + y2/13 = 1
(x - -1)2/13 + (y - 0)2/13 = 1
Thus, the center of the circle is (-1, 0) and its radius is 1.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the radius for a circle with the equation x2 plus y2 equals 9?
Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.
What is the center and the radius of the circle with this equation x2 plus y2 equals 121?
Centre = (0,0), the origin; radius = 11
What is the radius of the circle with the equation x² plus y² equals 36?
A circle centre (0, 0) and radius r has equation x² + y² = r² The circle x² + y² = 36 has: r² = 36 → radius = 6
What the radius for a circle with the equation x2 plus y2 equals 25?
5. A circle with centre (0,0) has equation: x2 + y2 = radius2 With: x2 + y2 = 25 = 52 The radius is 5.
Find the center and radius of the circle with this equation X2 plus Y2 minus 6X plus 2Y equals 0?
The centre is (3,-1) and the radius is sqrt(10).
What is the radius for a circle with the equation x2 plus y2 equals 9?
Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.
What is the center and the radius of the circle with this equation x2 plus y2 equals 121?
Centre = (0,0), the origin; radius = 11
What is the radius of the circle with the equation x² plus y² equals 36?
A circle centre (0, 0) and radius r has equation x² + y² = r² The circle x² + y² = 36 has: r² = 36 → radius = 6
What the radius for a circle with the equation x2 plus y2 equals 25?
5. A circle with centre (0,0) has equation: x2 + y2 = radius2 With: x2 + y2 = 25 = 52 The radius is 5.
What equation represents the graph of a circle?
Equation of a circle when its centre is at (0, 0): x^2 + y^2 = radius^2 Equation of a circle when its centre is at (a, b): (x-a)^2 + (y-b)^2 = radius^2
Find the center and radius of the circle with this equation X2 plus Y2 minus 6X plus 2Y equals 0?
The centre is (3,-1) and the radius is sqrt(10).
The equation for the circle is x2 plus y2 equals 121 What is the length of the circle's radius?
Radius = 1111
Find the radius for a circle with the equation x2 plus y2 equals 9?
Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..
How do you solve x squared plus y squared equals 13?
The equation describes a circle with its centre at the origin and radius = √13. Each and every point on that circle is a solution.
What is the equation of a circle with center (3 8) and a radius of 2?
Centre of the circle: (3, 8) Radius of the circle: 2 Cartesian equation of the circle: (x-3)^2 + (y-8)^2 = 4
The circle is centered at the point -3 2 and has a radius of length 7 What is its equation?
The equation for a circle, centre (a,b), radius r, is:(x-a)+(y-b)=r2So for a circle, centre (-3,2), r=7(x+3)+(y-2)=49
The equation of a circle centered at the origin is x2 plus y2 16. What is the radius of the circle?
If that equals 16 then the radius is 4
