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Q: Equation of director circle of the circle x2 plus y2 equals r2 is?

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Type your answer here. Find the radius for a circle with the equation x2 plus y2 equals 9? ..

7

9

56

x^2+y^2=36

Radius = 1111

The ' 1 ' in that equation is the radius.

If that equals 16 then the radius is 4

3 (which is the sqrt of 9)

If a = b then it is a circle; otherwise it is an ellipse.

sqrt 36 ie 6

The center of the circle given by the equation (x - 3)2 plus (y + 2)2 = 9 is (3,-2).

(-4,3)

(-7,5)

(-4,-6)

3x² + 3y² = 75

The graph of that equation is a circle, centered at the origin, with radius = 2 .

The equation soild plus gas equals a liquid

(-4, 3)

(8,-8)

(-5, 3)

Equation of a circle centre the origin is: x2 + y2 = radius2 ⇒ radius = √9 = 3.

8

(4, 1)

Centre = (0,0), the origin; radius = 11